1126 lines
39 KiB
C
1126 lines
39 KiB
C
/* Vector API for GDB.
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Copyright (C) 2004-2016 Free Software Foundation, Inc.
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Contributed by Nathan Sidwell <nathan@codesourcery.com>
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#if !defined (GDB_VEC_H)
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#define GDB_VEC_H
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/* The macros here implement a set of templated vector types and
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associated interfaces. These templates are implemented with
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macros, as we're not in C++ land. The interface functions are
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typesafe and use static inline functions, sometimes backed by
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out-of-line generic functions.
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Because of the different behavior of structure objects, scalar
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objects and of pointers, there are three flavors, one for each of
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these variants. Both the structure object and pointer variants
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pass pointers to objects around -- in the former case the pointers
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are stored into the vector and in the latter case the pointers are
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dereferenced and the objects copied into the vector. The scalar
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object variant is suitable for int-like objects, and the vector
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elements are returned by value.
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There are both 'index' and 'iterate' accessors. The iterator
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returns a boolean iteration condition and updates the iteration
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variable passed by reference. Because the iterator will be
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inlined, the address-of can be optimized away.
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The vectors are implemented using the trailing array idiom, thus
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they are not resizeable without changing the address of the vector
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object itself. This means you cannot have variables or fields of
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vector type -- always use a pointer to a vector. The one exception
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is the final field of a structure, which could be a vector type.
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You will have to use the embedded_size & embedded_init calls to
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create such objects, and they will probably not be resizeable (so
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don't use the 'safe' allocation variants). The trailing array
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idiom is used (rather than a pointer to an array of data), because,
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if we allow NULL to also represent an empty vector, empty vectors
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occupy minimal space in the structure containing them.
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Each operation that increases the number of active elements is
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available in 'quick' and 'safe' variants. The former presumes that
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there is sufficient allocated space for the operation to succeed
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(it dies if there is not). The latter will reallocate the
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vector, if needed. Reallocation causes an exponential increase in
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vector size. If you know you will be adding N elements, it would
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be more efficient to use the reserve operation before adding the
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elements with the 'quick' operation. This will ensure there are at
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least as many elements as you ask for, it will exponentially
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increase if there are too few spare slots. If you want reserve a
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specific number of slots, but do not want the exponential increase
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(for instance, you know this is the last allocation), use a
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negative number for reservation. You can also create a vector of a
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specific size from the get go.
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You should prefer the push and pop operations, as they append and
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remove from the end of the vector. If you need to remove several
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items in one go, use the truncate operation. The insert and remove
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operations allow you to change elements in the middle of the
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vector. There are two remove operations, one which preserves the
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element ordering 'ordered_remove', and one which does not
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'unordered_remove'. The latter function copies the end element
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into the removed slot, rather than invoke a memmove operation. The
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'lower_bound' function will determine where to place an item in the
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array using insert that will maintain sorted order.
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If you need to directly manipulate a vector, then the 'address'
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accessor will return the address of the start of the vector. Also
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the 'space' predicate will tell you whether there is spare capacity
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in the vector. You will not normally need to use these two functions.
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Vector types are defined using a DEF_VEC_{O,P,I}(TYPEDEF) macro.
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Variables of vector type are declared using a VEC(TYPEDEF) macro.
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The characters O, P and I indicate whether TYPEDEF is a pointer
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(P), object (O) or integral (I) type. Be careful to pick the
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correct one, as you'll get an awkward and inefficient API if you
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use the wrong one. There is a check, which results in a
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compile-time warning, for the P and I versions, but there is no
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check for the O versions, as that is not possible in plain C.
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An example of their use would be,
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DEF_VEC_P(tree); // non-managed tree vector.
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struct my_struct {
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VEC(tree) *v; // A (pointer to) a vector of tree pointers.
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};
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struct my_struct *s;
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if (VEC_length(tree, s->v)) { we have some contents }
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VEC_safe_push(tree, s->v, decl); // append some decl onto the end
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for (ix = 0; VEC_iterate(tree, s->v, ix, elt); ix++)
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{ do something with elt }
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*/
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/* Macros to invoke API calls. A single macro works for both pointer
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and object vectors, but the argument and return types might well be
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different. In each macro, T is the typedef of the vector elements.
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Some of these macros pass the vector, V, by reference (by taking
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its address), this is noted in the descriptions. */
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/* Length of vector
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unsigned VEC_T_length(const VEC(T) *v);
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Return the number of active elements in V. V can be NULL, in which
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case zero is returned. */
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#define VEC_length(T,V) (VEC_OP(T,length)(V))
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/* Check if vector is empty
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int VEC_T_empty(const VEC(T) *v);
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Return nonzero if V is an empty vector (or V is NULL), zero otherwise. */
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#define VEC_empty(T,V) (VEC_length (T,V) == 0)
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/* Get the final element of the vector.
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T VEC_T_last(VEC(T) *v); // Integer
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T VEC_T_last(VEC(T) *v); // Pointer
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T *VEC_T_last(VEC(T) *v); // Object
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Return the final element. V must not be empty. */
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#define VEC_last(T,V) (VEC_OP(T,last)(V VEC_ASSERT_INFO))
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/* Index into vector
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T VEC_T_index(VEC(T) *v, unsigned ix); // Integer
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T VEC_T_index(VEC(T) *v, unsigned ix); // Pointer
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T *VEC_T_index(VEC(T) *v, unsigned ix); // Object
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Return the IX'th element. If IX must be in the domain of V. */
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#define VEC_index(T,V,I) (VEC_OP(T,index)(V,I VEC_ASSERT_INFO))
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/* Iterate over vector
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int VEC_T_iterate(VEC(T) *v, unsigned ix, T &ptr); // Integer
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int VEC_T_iterate(VEC(T) *v, unsigned ix, T &ptr); // Pointer
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int VEC_T_iterate(VEC(T) *v, unsigned ix, T *&ptr); // Object
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Return iteration condition and update PTR to point to the IX'th
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element. At the end of iteration, sets PTR to NULL. Use this to
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iterate over the elements of a vector as follows,
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for (ix = 0; VEC_iterate(T,v,ix,ptr); ix++)
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continue; */
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#define VEC_iterate(T,V,I,P) (VEC_OP(T,iterate)(V,I,&(P)))
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/* Allocate new vector.
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VEC(T,A) *VEC_T_alloc(int reserve);
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Allocate a new vector with space for RESERVE objects. If RESERVE
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is zero, NO vector is created. */
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#define VEC_alloc(T,N) (VEC_OP(T,alloc)(N))
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/* Free a vector.
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void VEC_T_free(VEC(T,A) *&);
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Free a vector and set it to NULL. */
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#define VEC_free(T,V) (VEC_OP(T,free)(&V))
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/* A cleanup function for a vector.
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void VEC_T_cleanup(void *);
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Clean up a vector. */
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#define VEC_cleanup(T) (VEC_OP(T,cleanup))
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/* Use these to determine the required size and initialization of a
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vector embedded within another structure (as the final member).
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size_t VEC_T_embedded_size(int reserve);
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void VEC_T_embedded_init(VEC(T) *v, int reserve);
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These allow the caller to perform the memory allocation. */
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#define VEC_embedded_size(T,N) (VEC_OP(T,embedded_size)(N))
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#define VEC_embedded_init(T,O,N) (VEC_OP(T,embedded_init)(VEC_BASE(O),N))
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/* Copy a vector.
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VEC(T,A) *VEC_T_copy(VEC(T) *);
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Copy the live elements of a vector into a new vector. The new and
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old vectors need not be allocated by the same mechanism. */
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#define VEC_copy(T,V) (VEC_OP(T,copy)(V))
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/* Merge two vectors.
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VEC(T,A) *VEC_T_merge(VEC(T) *, VEC(T) *);
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Copy the live elements of both vectors into a new vector. The new
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and old vectors need not be allocated by the same mechanism. */
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#define VEC_merge(T,V1,V2) (VEC_OP(T,merge)(V1, V2))
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/* Determine if a vector has additional capacity.
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int VEC_T_space (VEC(T) *v,int reserve)
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If V has space for RESERVE additional entries, return nonzero. You
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usually only need to use this if you are doing your own vector
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reallocation, for instance on an embedded vector. This returns
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nonzero in exactly the same circumstances that VEC_T_reserve
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will. */
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#define VEC_space(T,V,R) (VEC_OP(T,space)(V,R VEC_ASSERT_INFO))
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/* Reserve space.
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int VEC_T_reserve(VEC(T,A) *&v, int reserve);
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Ensure that V has at least abs(RESERVE) slots available. The
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signedness of RESERVE determines the reallocation behavior. A
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negative value will not create additional headroom beyond that
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requested. A positive value will create additional headroom. Note
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this can cause V to be reallocated. Returns nonzero iff
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reallocation actually occurred. */
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#define VEC_reserve(T,V,R) (VEC_OP(T,reserve)(&(V),R VEC_ASSERT_INFO))
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/* Push object with no reallocation
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T *VEC_T_quick_push (VEC(T) *v, T obj); // Integer
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T *VEC_T_quick_push (VEC(T) *v, T obj); // Pointer
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T *VEC_T_quick_push (VEC(T) *v, T *obj); // Object
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Push a new element onto the end, returns a pointer to the slot
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filled in. For object vectors, the new value can be NULL, in which
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case NO initialization is performed. There must
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be sufficient space in the vector. */
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#define VEC_quick_push(T,V,O) (VEC_OP(T,quick_push)(V,O VEC_ASSERT_INFO))
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/* Push object with reallocation
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T *VEC_T_safe_push (VEC(T,A) *&v, T obj); // Integer
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T *VEC_T_safe_push (VEC(T,A) *&v, T obj); // Pointer
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T *VEC_T_safe_push (VEC(T,A) *&v, T *obj); // Object
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Push a new element onto the end, returns a pointer to the slot
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filled in. For object vectors, the new value can be NULL, in which
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case NO initialization is performed. Reallocates V, if needed. */
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#define VEC_safe_push(T,V,O) (VEC_OP(T,safe_push)(&(V),O VEC_ASSERT_INFO))
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/* Pop element off end
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T VEC_T_pop (VEC(T) *v); // Integer
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T VEC_T_pop (VEC(T) *v); // Pointer
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void VEC_T_pop (VEC(T) *v); // Object
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Pop the last element off the end. Returns the element popped, for
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pointer vectors. */
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#define VEC_pop(T,V) (VEC_OP(T,pop)(V VEC_ASSERT_INFO))
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/* Truncate to specific length
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void VEC_T_truncate (VEC(T) *v, unsigned len);
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Set the length as specified. The new length must be less than or
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equal to the current length. This is an O(1) operation. */
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#define VEC_truncate(T,V,I) \
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(VEC_OP(T,truncate)(V,I VEC_ASSERT_INFO))
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/* Grow to a specific length.
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void VEC_T_safe_grow (VEC(T,A) *&v, int len);
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Grow the vector to a specific length. The LEN must be as
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long or longer than the current length. The new elements are
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uninitialized. */
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#define VEC_safe_grow(T,V,I) \
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(VEC_OP(T,safe_grow)(&(V),I VEC_ASSERT_INFO))
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/* Replace element
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T VEC_T_replace (VEC(T) *v, unsigned ix, T val); // Integer
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T VEC_T_replace (VEC(T) *v, unsigned ix, T val); // Pointer
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T *VEC_T_replace (VEC(T) *v, unsigned ix, T *val); // Object
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Replace the IXth element of V with a new value, VAL. For pointer
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vectors returns the original value. For object vectors returns a
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pointer to the new value. For object vectors the new value can be
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NULL, in which case no overwriting of the slot is actually
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performed. */
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#define VEC_replace(T,V,I,O) (VEC_OP(T,replace)(V,I,O VEC_ASSERT_INFO))
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/* Insert object with no reallocation
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T *VEC_T_quick_insert (VEC(T) *v, unsigned ix, T val); // Integer
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T *VEC_T_quick_insert (VEC(T) *v, unsigned ix, T val); // Pointer
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T *VEC_T_quick_insert (VEC(T) *v, unsigned ix, T *val); // Object
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Insert an element, VAL, at the IXth position of V. Return a pointer
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to the slot created. For vectors of object, the new value can be
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NULL, in which case no initialization of the inserted slot takes
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place. There must be sufficient space. */
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#define VEC_quick_insert(T,V,I,O) \
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(VEC_OP(T,quick_insert)(V,I,O VEC_ASSERT_INFO))
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/* Insert object with reallocation
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T *VEC_T_safe_insert (VEC(T,A) *&v, unsigned ix, T val); // Integer
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T *VEC_T_safe_insert (VEC(T,A) *&v, unsigned ix, T val); // Pointer
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T *VEC_T_safe_insert (VEC(T,A) *&v, unsigned ix, T *val); // Object
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Insert an element, VAL, at the IXth position of V. Return a pointer
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to the slot created. For vectors of object, the new value can be
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NULL, in which case no initialization of the inserted slot takes
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place. Reallocate V, if necessary. */
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#define VEC_safe_insert(T,V,I,O) \
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(VEC_OP(T,safe_insert)(&(V),I,O VEC_ASSERT_INFO))
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/* Remove element retaining order
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T VEC_T_ordered_remove (VEC(T) *v, unsigned ix); // Integer
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T VEC_T_ordered_remove (VEC(T) *v, unsigned ix); // Pointer
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void VEC_T_ordered_remove (VEC(T) *v, unsigned ix); // Object
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Remove an element from the IXth position of V. Ordering of
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remaining elements is preserved. For pointer vectors returns the
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removed object. This is an O(N) operation due to a memmove. */
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#define VEC_ordered_remove(T,V,I) \
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(VEC_OP(T,ordered_remove)(V,I VEC_ASSERT_INFO))
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/* Remove element destroying order
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T VEC_T_unordered_remove (VEC(T) *v, unsigned ix); // Integer
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T VEC_T_unordered_remove (VEC(T) *v, unsigned ix); // Pointer
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void VEC_T_unordered_remove (VEC(T) *v, unsigned ix); // Object
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Remove an element from the IXth position of V. Ordering of
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remaining elements is destroyed. For pointer vectors returns the
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removed object. This is an O(1) operation. */
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#define VEC_unordered_remove(T,V,I) \
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(VEC_OP(T,unordered_remove)(V,I VEC_ASSERT_INFO))
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/* Remove a block of elements
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void VEC_T_block_remove (VEC(T) *v, unsigned ix, unsigned len);
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Remove LEN elements starting at the IXth. Ordering is retained.
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This is an O(N) operation due to memmove. */
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#define VEC_block_remove(T,V,I,L) \
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(VEC_OP(T,block_remove)(V,I,L VEC_ASSERT_INFO))
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/* Get the address of the array of elements
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T *VEC_T_address (VEC(T) v)
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If you need to directly manipulate the array (for instance, you
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want to feed it to qsort), use this accessor. */
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#define VEC_address(T,V) (VEC_OP(T,address)(V))
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/* Find the first index in the vector not less than the object.
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unsigned VEC_T_lower_bound (VEC(T) *v, const T val,
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int (*lessthan) (const T, const T)); // Integer
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unsigned VEC_T_lower_bound (VEC(T) *v, const T val,
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int (*lessthan) (const T, const T)); // Pointer
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unsigned VEC_T_lower_bound (VEC(T) *v, const T *val,
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int (*lessthan) (const T*, const T*)); // Object
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Find the first position in which VAL could be inserted without
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changing the ordering of V. LESSTHAN is a function that returns
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true if the first argument is strictly less than the second. */
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#define VEC_lower_bound(T,V,O,LT) \
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(VEC_OP(T,lower_bound)(V,O,LT VEC_ASSERT_INFO))
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/* Reallocate an array of elements with prefix. */
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extern void *vec_p_reserve (void *, int);
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extern void *vec_o_reserve (void *, int, size_t, size_t);
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#define vec_free_(V) xfree (V)
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#define VEC_ASSERT_INFO ,__FILE__,__LINE__
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#define VEC_ASSERT_DECL ,const char *file_,unsigned line_
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#define VEC_ASSERT_PASS ,file_,line_
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#define vec_assert(expr, op) \
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((void)((expr) ? 0 : (gdb_assert_fail (op, file_, line_, \
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FUNCTION_NAME), 0)))
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#define VEC(T) VEC_##T
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#define VEC_OP(T,OP) VEC_##T##_##OP
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#define VEC_T(T) \
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typedef struct VEC(T) \
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{ \
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unsigned num; \
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unsigned alloc; \
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T vec[1]; \
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} VEC(T)
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/* Vector of integer-like object. */
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#define DEF_VEC_I(T) \
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static inline void VEC_OP (T,must_be_integral_type) (void) \
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{ \
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(void)~(T)0; \
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} \
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\
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VEC_T(T); \
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DEF_VEC_FUNC_P(T) \
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DEF_VEC_ALLOC_FUNC_I(T) \
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struct vec_swallow_trailing_semi
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/* Vector of pointer to object. */
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#define DEF_VEC_P(T) \
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static inline void VEC_OP (T,must_be_pointer_type) (void) \
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{ \
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(void)((T)1 == (void *)1); \
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} \
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\
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VEC_T(T); \
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DEF_VEC_FUNC_P(T) \
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DEF_VEC_ALLOC_FUNC_P(T) \
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struct vec_swallow_trailing_semi
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/* Vector of object. */
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#define DEF_VEC_O(T) \
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VEC_T(T); \
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DEF_VEC_FUNC_O(T) \
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DEF_VEC_ALLOC_FUNC_O(T) \
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struct vec_swallow_trailing_semi
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|
|
/* Avoid offsetof (or its usual C implementation) as it triggers
|
|
-Winvalid-offsetof warnings with enum_flags types with G++ <= 4.4,
|
|
even though those types are memcpyable. This requires allocating a
|
|
dummy local VEC in all routines that use this, but that has the
|
|
advantage that it only works if T is default constructible, which
|
|
is exactly a check we want, to keep C compatibility. */
|
|
#define vec_offset(T, VPTR) ((size_t) ((char *) &(VPTR)->vec - (char *) VPTR))
|
|
|
|
#define DEF_VEC_ALLOC_FUNC_I(T) \
|
|
static inline VEC(T) *VEC_OP (T,alloc) \
|
|
(int alloc_) \
|
|
{ \
|
|
VEC(T) dummy; \
|
|
\
|
|
/* We must request exact size allocation, hence the negation. */ \
|
|
return (VEC(T) *) vec_o_reserve (NULL, -alloc_, \
|
|
vec_offset (T, &dummy), sizeof (T)); \
|
|
} \
|
|
\
|
|
static inline VEC(T) *VEC_OP (T,copy) (VEC(T) *vec_) \
|
|
{ \
|
|
size_t len_ = vec_ ? vec_->num : 0; \
|
|
VEC (T) *new_vec_ = NULL; \
|
|
\
|
|
if (len_) \
|
|
{ \
|
|
VEC(T) dummy; \
|
|
\
|
|
/* We must request exact size allocation, hence the negation. */ \
|
|
new_vec_ = (VEC (T) *) \
|
|
vec_o_reserve (NULL, -len_, vec_offset (T, &dummy), sizeof (T)); \
|
|
\
|
|
new_vec_->num = len_; \
|
|
memcpy (new_vec_->vec, vec_->vec, sizeof (T) * len_); \
|
|
} \
|
|
return new_vec_; \
|
|
} \
|
|
\
|
|
static inline VEC(T) *VEC_OP (T,merge) (VEC(T) *vec1_, VEC(T) *vec2_) \
|
|
{ \
|
|
if (vec1_ && vec2_) \
|
|
{ \
|
|
VEC(T) dummy; \
|
|
size_t len_ = vec1_->num + vec2_->num; \
|
|
VEC (T) *new_vec_ = NULL; \
|
|
\
|
|
/* We must request exact size allocation, hence the negation. */ \
|
|
new_vec_ = (VEC (T) *) \
|
|
vec_o_reserve (NULL, -len_, vec_offset (T, &dummy), sizeof (T)); \
|
|
\
|
|
new_vec_->num = len_; \
|
|
memcpy (new_vec_->vec, vec1_->vec, sizeof (T) * vec1_->num); \
|
|
memcpy (new_vec_->vec + vec1_->num, vec2_->vec, \
|
|
sizeof (T) * vec2_->num); \
|
|
\
|
|
return new_vec_; \
|
|
} \
|
|
else \
|
|
return VEC_copy (T, vec1_ ? vec1_ : vec2_); \
|
|
} \
|
|
\
|
|
static inline void VEC_OP (T,free) \
|
|
(VEC(T) **vec_) \
|
|
{ \
|
|
if (*vec_) \
|
|
vec_free_ (*vec_); \
|
|
*vec_ = NULL; \
|
|
} \
|
|
\
|
|
static inline void VEC_OP (T,cleanup) \
|
|
(void *arg_) \
|
|
{ \
|
|
VEC(T) **vec_ = (VEC(T) **) arg_; \
|
|
if (*vec_) \
|
|
vec_free_ (*vec_); \
|
|
*vec_ = NULL; \
|
|
} \
|
|
\
|
|
static inline int VEC_OP (T,reserve) \
|
|
(VEC(T) **vec_, int alloc_ VEC_ASSERT_DECL) \
|
|
{ \
|
|
VEC(T) dummy; \
|
|
int extend = !VEC_OP (T,space) \
|
|
(*vec_, alloc_ < 0 ? -alloc_ : alloc_ VEC_ASSERT_PASS); \
|
|
\
|
|
if (extend) \
|
|
*vec_ = (VEC(T) *) vec_o_reserve (*vec_, alloc_, \
|
|
vec_offset (T, &dummy), sizeof (T)); \
|
|
\
|
|
return extend; \
|
|
} \
|
|
\
|
|
static inline void VEC_OP (T,safe_grow) \
|
|
(VEC(T) **vec_, int size_ VEC_ASSERT_DECL) \
|
|
{ \
|
|
vec_assert (size_ >= 0 && VEC_OP(T,length) (*vec_) <= (unsigned)size_, \
|
|
"safe_grow"); \
|
|
VEC_OP (T,reserve) (vec_, (int)(*vec_ ? (*vec_)->num : 0) - size_ \
|
|
VEC_ASSERT_PASS); \
|
|
(*vec_)->num = size_; \
|
|
} \
|
|
\
|
|
static inline T *VEC_OP (T,safe_push) \
|
|
(VEC(T) **vec_, const T obj_ VEC_ASSERT_DECL) \
|
|
{ \
|
|
VEC_OP (T,reserve) (vec_, 1 VEC_ASSERT_PASS); \
|
|
\
|
|
return VEC_OP (T,quick_push) (*vec_, obj_ VEC_ASSERT_PASS); \
|
|
} \
|
|
\
|
|
static inline T *VEC_OP (T,safe_insert) \
|
|
(VEC(T) **vec_, unsigned ix_, const T obj_ VEC_ASSERT_DECL) \
|
|
{ \
|
|
VEC_OP (T,reserve) (vec_, 1 VEC_ASSERT_PASS); \
|
|
\
|
|
return VEC_OP (T,quick_insert) (*vec_, ix_, obj_ VEC_ASSERT_PASS); \
|
|
}
|
|
|
|
#define DEF_VEC_FUNC_P(T) \
|
|
static inline unsigned VEC_OP (T,length) (const VEC(T) *vec_) \
|
|
{ \
|
|
return vec_ ? vec_->num : 0; \
|
|
} \
|
|
\
|
|
static inline T VEC_OP (T,last) \
|
|
(const VEC(T) *vec_ VEC_ASSERT_DECL) \
|
|
{ \
|
|
vec_assert (vec_ && vec_->num, "last"); \
|
|
\
|
|
return vec_->vec[vec_->num - 1]; \
|
|
} \
|
|
\
|
|
static inline T VEC_OP (T,index) \
|
|
(const VEC(T) *vec_, unsigned ix_ VEC_ASSERT_DECL) \
|
|
{ \
|
|
vec_assert (vec_ && ix_ < vec_->num, "index"); \
|
|
\
|
|
return vec_->vec[ix_]; \
|
|
} \
|
|
\
|
|
static inline int VEC_OP (T,iterate) \
|
|
(const VEC(T) *vec_, unsigned ix_, T *ptr) \
|
|
{ \
|
|
if (vec_ && ix_ < vec_->num) \
|
|
{ \
|
|
*ptr = vec_->vec[ix_]; \
|
|
return 1; \
|
|
} \
|
|
else \
|
|
{ \
|
|
*ptr = (T) 0; \
|
|
return 0; \
|
|
} \
|
|
} \
|
|
\
|
|
static inline size_t VEC_OP (T,embedded_size) \
|
|
(int alloc_) \
|
|
{ \
|
|
VEC(T) dummy; \
|
|
\
|
|
return vec_offset (T, &dummy) + alloc_ * sizeof(T); \
|
|
} \
|
|
\
|
|
static inline void VEC_OP (T,embedded_init) \
|
|
(VEC(T) *vec_, int alloc_) \
|
|
{ \
|
|
vec_->num = 0; \
|
|
vec_->alloc = alloc_; \
|
|
} \
|
|
\
|
|
static inline int VEC_OP (T,space) \
|
|
(VEC(T) *vec_, int alloc_ VEC_ASSERT_DECL) \
|
|
{ \
|
|
vec_assert (alloc_ >= 0, "space"); \
|
|
return vec_ ? vec_->alloc - vec_->num >= (unsigned)alloc_ : !alloc_; \
|
|
} \
|
|
\
|
|
static inline T *VEC_OP (T,quick_push) \
|
|
(VEC(T) *vec_, T obj_ VEC_ASSERT_DECL) \
|
|
{ \
|
|
T *slot_; \
|
|
\
|
|
vec_assert (vec_->num < vec_->alloc, "quick_push"); \
|
|
slot_ = &vec_->vec[vec_->num++]; \
|
|
*slot_ = obj_; \
|
|
\
|
|
return slot_; \
|
|
} \
|
|
\
|
|
static inline T VEC_OP (T,pop) (VEC(T) *vec_ VEC_ASSERT_DECL) \
|
|
{ \
|
|
T obj_; \
|
|
\
|
|
vec_assert (vec_->num, "pop"); \
|
|
obj_ = vec_->vec[--vec_->num]; \
|
|
\
|
|
return obj_; \
|
|
} \
|
|
\
|
|
static inline void VEC_OP (T,truncate) \
|
|
(VEC(T) *vec_, unsigned size_ VEC_ASSERT_DECL) \
|
|
{ \
|
|
vec_assert (vec_ ? vec_->num >= size_ : !size_, "truncate"); \
|
|
if (vec_) \
|
|
vec_->num = size_; \
|
|
} \
|
|
\
|
|
static inline T VEC_OP (T,replace) \
|
|
(VEC(T) *vec_, unsigned ix_, T obj_ VEC_ASSERT_DECL) \
|
|
{ \
|
|
T old_obj_; \
|
|
\
|
|
vec_assert (ix_ < vec_->num, "replace"); \
|
|
old_obj_ = vec_->vec[ix_]; \
|
|
vec_->vec[ix_] = obj_; \
|
|
\
|
|
return old_obj_; \
|
|
} \
|
|
\
|
|
static inline T *VEC_OP (T,quick_insert) \
|
|
(VEC(T) *vec_, unsigned ix_, T obj_ VEC_ASSERT_DECL) \
|
|
{ \
|
|
T *slot_; \
|
|
\
|
|
vec_assert (vec_->num < vec_->alloc && ix_ <= vec_->num, "quick_insert"); \
|
|
slot_ = &vec_->vec[ix_]; \
|
|
memmove (slot_ + 1, slot_, (vec_->num++ - ix_) * sizeof (T)); \
|
|
*slot_ = obj_; \
|
|
\
|
|
return slot_; \
|
|
} \
|
|
\
|
|
static inline T VEC_OP (T,ordered_remove) \
|
|
(VEC(T) *vec_, unsigned ix_ VEC_ASSERT_DECL) \
|
|
{ \
|
|
T *slot_; \
|
|
T obj_; \
|
|
\
|
|
vec_assert (ix_ < vec_->num, "ordered_remove"); \
|
|
slot_ = &vec_->vec[ix_]; \
|
|
obj_ = *slot_; \
|
|
memmove (slot_, slot_ + 1, (--vec_->num - ix_) * sizeof (T)); \
|
|
\
|
|
return obj_; \
|
|
} \
|
|
\
|
|
static inline T VEC_OP (T,unordered_remove) \
|
|
(VEC(T) *vec_, unsigned ix_ VEC_ASSERT_DECL) \
|
|
{ \
|
|
T *slot_; \
|
|
T obj_; \
|
|
\
|
|
vec_assert (ix_ < vec_->num, "unordered_remove"); \
|
|
slot_ = &vec_->vec[ix_]; \
|
|
obj_ = *slot_; \
|
|
*slot_ = vec_->vec[--vec_->num]; \
|
|
\
|
|
return obj_; \
|
|
} \
|
|
\
|
|
static inline void VEC_OP (T,block_remove) \
|
|
(VEC(T) *vec_, unsigned ix_, unsigned len_ VEC_ASSERT_DECL) \
|
|
{ \
|
|
T *slot_; \
|
|
\
|
|
vec_assert (ix_ + len_ <= vec_->num, "block_remove"); \
|
|
slot_ = &vec_->vec[ix_]; \
|
|
vec_->num -= len_; \
|
|
memmove (slot_, slot_ + len_, (vec_->num - ix_) * sizeof (T)); \
|
|
} \
|
|
\
|
|
static inline T *VEC_OP (T,address) \
|
|
(VEC(T) *vec_) \
|
|
{ \
|
|
return vec_ ? vec_->vec : 0; \
|
|
} \
|
|
\
|
|
static inline unsigned VEC_OP (T,lower_bound) \
|
|
(VEC(T) *vec_, const T obj_, \
|
|
int (*lessthan_)(const T, const T) VEC_ASSERT_DECL) \
|
|
{ \
|
|
unsigned int len_ = VEC_OP (T, length) (vec_); \
|
|
unsigned int half_, middle_; \
|
|
unsigned int first_ = 0; \
|
|
while (len_ > 0) \
|
|
{ \
|
|
T middle_elem_; \
|
|
half_ = len_ >> 1; \
|
|
middle_ = first_; \
|
|
middle_ += half_; \
|
|
middle_elem_ = VEC_OP (T,index) (vec_, middle_ VEC_ASSERT_PASS); \
|
|
if (lessthan_ (middle_elem_, obj_)) \
|
|
{ \
|
|
first_ = middle_; \
|
|
++first_; \
|
|
len_ = len_ - half_ - 1; \
|
|
} \
|
|
else \
|
|
len_ = half_; \
|
|
} \
|
|
return first_; \
|
|
}
|
|
|
|
#define DEF_VEC_ALLOC_FUNC_P(T) \
|
|
static inline VEC(T) *VEC_OP (T,alloc) \
|
|
(int alloc_) \
|
|
{ \
|
|
/* We must request exact size allocation, hence the negation. */ \
|
|
return (VEC(T) *) vec_p_reserve (NULL, -alloc_); \
|
|
} \
|
|
\
|
|
static inline void VEC_OP (T,free) \
|
|
(VEC(T) **vec_) \
|
|
{ \
|
|
if (*vec_) \
|
|
vec_free_ (*vec_); \
|
|
*vec_ = NULL; \
|
|
} \
|
|
\
|
|
static inline void VEC_OP (T,cleanup) \
|
|
(void *arg_) \
|
|
{ \
|
|
VEC(T) **vec_ = (VEC(T) **) arg_; \
|
|
if (*vec_) \
|
|
vec_free_ (*vec_); \
|
|
*vec_ = NULL; \
|
|
} \
|
|
\
|
|
static inline VEC(T) *VEC_OP (T,copy) (VEC(T) *vec_) \
|
|
{ \
|
|
size_t len_ = vec_ ? vec_->num : 0; \
|
|
VEC (T) *new_vec_ = NULL; \
|
|
\
|
|
if (len_) \
|
|
{ \
|
|
/* We must request exact size allocation, hence the negation. */ \
|
|
new_vec_ = (VEC (T) *)(vec_p_reserve (NULL, -len_)); \
|
|
\
|
|
new_vec_->num = len_; \
|
|
memcpy (new_vec_->vec, vec_->vec, sizeof (T) * len_); \
|
|
} \
|
|
return new_vec_; \
|
|
} \
|
|
\
|
|
static inline VEC(T) *VEC_OP (T,merge) (VEC(T) *vec1_, VEC(T) *vec2_) \
|
|
{ \
|
|
if (vec1_ && vec2_) \
|
|
{ \
|
|
size_t len_ = vec1_->num + vec2_->num; \
|
|
VEC (T) *new_vec_ = NULL; \
|
|
\
|
|
/* We must request exact size allocation, hence the negation. */ \
|
|
new_vec_ = (VEC (T) *)(vec_p_reserve (NULL, -len_)); \
|
|
\
|
|
new_vec_->num = len_; \
|
|
memcpy (new_vec_->vec, vec1_->vec, sizeof (T) * vec1_->num); \
|
|
memcpy (new_vec_->vec + vec1_->num, vec2_->vec, \
|
|
sizeof (T) * vec2_->num); \
|
|
\
|
|
return new_vec_; \
|
|
} \
|
|
else \
|
|
return VEC_copy (T, vec1_ ? vec1_ : vec2_); \
|
|
} \
|
|
\
|
|
static inline int VEC_OP (T,reserve) \
|
|
(VEC(T) **vec_, int alloc_ VEC_ASSERT_DECL) \
|
|
{ \
|
|
int extend = !VEC_OP (T,space) \
|
|
(*vec_, alloc_ < 0 ? -alloc_ : alloc_ VEC_ASSERT_PASS); \
|
|
\
|
|
if (extend) \
|
|
*vec_ = (VEC(T) *) vec_p_reserve (*vec_, alloc_); \
|
|
\
|
|
return extend; \
|
|
} \
|
|
\
|
|
static inline void VEC_OP (T,safe_grow) \
|
|
(VEC(T) **vec_, int size_ VEC_ASSERT_DECL) \
|
|
{ \
|
|
vec_assert (size_ >= 0 && VEC_OP(T,length) (*vec_) <= (unsigned)size_, \
|
|
"safe_grow"); \
|
|
VEC_OP (T,reserve) \
|
|
(vec_, (int)(*vec_ ? (*vec_)->num : 0) - size_ VEC_ASSERT_PASS); \
|
|
(*vec_)->num = size_; \
|
|
} \
|
|
\
|
|
static inline T *VEC_OP (T,safe_push) \
|
|
(VEC(T) **vec_, T obj_ VEC_ASSERT_DECL) \
|
|
{ \
|
|
VEC_OP (T,reserve) (vec_, 1 VEC_ASSERT_PASS); \
|
|
\
|
|
return VEC_OP (T,quick_push) (*vec_, obj_ VEC_ASSERT_PASS); \
|
|
} \
|
|
\
|
|
static inline T *VEC_OP (T,safe_insert) \
|
|
(VEC(T) **vec_, unsigned ix_, T obj_ VEC_ASSERT_DECL) \
|
|
{ \
|
|
VEC_OP (T,reserve) (vec_, 1 VEC_ASSERT_PASS); \
|
|
\
|
|
return VEC_OP (T,quick_insert) (*vec_, ix_, obj_ VEC_ASSERT_PASS); \
|
|
}
|
|
|
|
#define DEF_VEC_FUNC_O(T) \
|
|
static inline unsigned VEC_OP (T,length) (const VEC(T) *vec_) \
|
|
{ \
|
|
return vec_ ? vec_->num : 0; \
|
|
} \
|
|
\
|
|
static inline T *VEC_OP (T,last) (VEC(T) *vec_ VEC_ASSERT_DECL) \
|
|
{ \
|
|
vec_assert (vec_ && vec_->num, "last"); \
|
|
\
|
|
return &vec_->vec[vec_->num - 1]; \
|
|
} \
|
|
\
|
|
static inline T *VEC_OP (T,index) \
|
|
(VEC(T) *vec_, unsigned ix_ VEC_ASSERT_DECL) \
|
|
{ \
|
|
vec_assert (vec_ && ix_ < vec_->num, "index"); \
|
|
\
|
|
return &vec_->vec[ix_]; \
|
|
} \
|
|
\
|
|
static inline int VEC_OP (T,iterate) \
|
|
(VEC(T) *vec_, unsigned ix_, T **ptr) \
|
|
{ \
|
|
if (vec_ && ix_ < vec_->num) \
|
|
{ \
|
|
*ptr = &vec_->vec[ix_]; \
|
|
return 1; \
|
|
} \
|
|
else \
|
|
{ \
|
|
*ptr = 0; \
|
|
return 0; \
|
|
} \
|
|
} \
|
|
\
|
|
static inline size_t VEC_OP (T,embedded_size) \
|
|
(int alloc_) \
|
|
{ \
|
|
VEC(T) dummy; \
|
|
\
|
|
return vec_offset (T, &dummy) + alloc_ * sizeof(T); \
|
|
} \
|
|
\
|
|
static inline void VEC_OP (T,embedded_init) \
|
|
(VEC(T) *vec_, int alloc_) \
|
|
{ \
|
|
vec_->num = 0; \
|
|
vec_->alloc = alloc_; \
|
|
} \
|
|
\
|
|
static inline int VEC_OP (T,space) \
|
|
(VEC(T) *vec_, int alloc_ VEC_ASSERT_DECL) \
|
|
{ \
|
|
vec_assert (alloc_ >= 0, "space"); \
|
|
return vec_ ? vec_->alloc - vec_->num >= (unsigned)alloc_ : !alloc_; \
|
|
} \
|
|
\
|
|
static inline T *VEC_OP (T,quick_push) \
|
|
(VEC(T) *vec_, const T *obj_ VEC_ASSERT_DECL) \
|
|
{ \
|
|
T *slot_; \
|
|
\
|
|
vec_assert (vec_->num < vec_->alloc, "quick_push"); \
|
|
slot_ = &vec_->vec[vec_->num++]; \
|
|
if (obj_) \
|
|
*slot_ = *obj_; \
|
|
\
|
|
return slot_; \
|
|
} \
|
|
\
|
|
static inline void VEC_OP (T,pop) (VEC(T) *vec_ VEC_ASSERT_DECL) \
|
|
{ \
|
|
vec_assert (vec_->num, "pop"); \
|
|
--vec_->num; \
|
|
} \
|
|
\
|
|
static inline void VEC_OP (T,truncate) \
|
|
(VEC(T) *vec_, unsigned size_ VEC_ASSERT_DECL) \
|
|
{ \
|
|
vec_assert (vec_ ? vec_->num >= size_ : !size_, "truncate"); \
|
|
if (vec_) \
|
|
vec_->num = size_; \
|
|
} \
|
|
\
|
|
static inline T *VEC_OP (T,replace) \
|
|
(VEC(T) *vec_, unsigned ix_, const T *obj_ VEC_ASSERT_DECL) \
|
|
{ \
|
|
T *slot_; \
|
|
\
|
|
vec_assert (ix_ < vec_->num, "replace"); \
|
|
slot_ = &vec_->vec[ix_]; \
|
|
if (obj_) \
|
|
*slot_ = *obj_; \
|
|
\
|
|
return slot_; \
|
|
} \
|
|
\
|
|
static inline T *VEC_OP (T,quick_insert) \
|
|
(VEC(T) *vec_, unsigned ix_, const T *obj_ VEC_ASSERT_DECL) \
|
|
{ \
|
|
T *slot_; \
|
|
\
|
|
vec_assert (vec_->num < vec_->alloc && ix_ <= vec_->num, "quick_insert"); \
|
|
slot_ = &vec_->vec[ix_]; \
|
|
memmove (slot_ + 1, slot_, (vec_->num++ - ix_) * sizeof (T)); \
|
|
if (obj_) \
|
|
*slot_ = *obj_; \
|
|
\
|
|
return slot_; \
|
|
} \
|
|
\
|
|
static inline void VEC_OP (T,ordered_remove) \
|
|
(VEC(T) *vec_, unsigned ix_ VEC_ASSERT_DECL) \
|
|
{ \
|
|
T *slot_; \
|
|
\
|
|
vec_assert (ix_ < vec_->num, "ordered_remove"); \
|
|
slot_ = &vec_->vec[ix_]; \
|
|
memmove (slot_, slot_ + 1, (--vec_->num - ix_) * sizeof (T)); \
|
|
} \
|
|
\
|
|
static inline void VEC_OP (T,unordered_remove) \
|
|
(VEC(T) *vec_, unsigned ix_ VEC_ASSERT_DECL) \
|
|
{ \
|
|
vec_assert (ix_ < vec_->num, "unordered_remove"); \
|
|
vec_->vec[ix_] = vec_->vec[--vec_->num]; \
|
|
} \
|
|
\
|
|
static inline void VEC_OP (T,block_remove) \
|
|
(VEC(T) *vec_, unsigned ix_, unsigned len_ VEC_ASSERT_DECL) \
|
|
{ \
|
|
T *slot_; \
|
|
\
|
|
vec_assert (ix_ + len_ <= vec_->num, "block_remove"); \
|
|
slot_ = &vec_->vec[ix_]; \
|
|
vec_->num -= len_; \
|
|
memmove (slot_, slot_ + len_, (vec_->num - ix_) * sizeof (T)); \
|
|
} \
|
|
\
|
|
static inline T *VEC_OP (T,address) \
|
|
(VEC(T) *vec_) \
|
|
{ \
|
|
return vec_ ? vec_->vec : 0; \
|
|
} \
|
|
\
|
|
static inline unsigned VEC_OP (T,lower_bound) \
|
|
(VEC(T) *vec_, const T *obj_, \
|
|
int (*lessthan_)(const T *, const T *) VEC_ASSERT_DECL) \
|
|
{ \
|
|
unsigned int len_ = VEC_OP (T, length) (vec_); \
|
|
unsigned int half_, middle_; \
|
|
unsigned int first_ = 0; \
|
|
while (len_ > 0) \
|
|
{ \
|
|
T *middle_elem_; \
|
|
half_ = len_ >> 1; \
|
|
middle_ = first_; \
|
|
middle_ += half_; \
|
|
middle_elem_ = VEC_OP (T,index) (vec_, middle_ VEC_ASSERT_PASS); \
|
|
if (lessthan_ (middle_elem_, obj_)) \
|
|
{ \
|
|
first_ = middle_; \
|
|
++first_; \
|
|
len_ = len_ - half_ - 1; \
|
|
} \
|
|
else \
|
|
len_ = half_; \
|
|
} \
|
|
return first_; \
|
|
}
|
|
|
|
#define DEF_VEC_ALLOC_FUNC_O(T) \
|
|
static inline VEC(T) *VEC_OP (T,alloc) \
|
|
(int alloc_) \
|
|
{ \
|
|
VEC(T) dummy; \
|
|
\
|
|
/* We must request exact size allocation, hence the negation. */ \
|
|
return (VEC(T) *) vec_o_reserve (NULL, -alloc_, \
|
|
vec_offset (T, &dummy), sizeof (T)); \
|
|
} \
|
|
\
|
|
static inline VEC(T) *VEC_OP (T,copy) (VEC(T) *vec_) \
|
|
{ \
|
|
size_t len_ = vec_ ? vec_->num : 0; \
|
|
VEC (T) *new_vec_ = NULL; \
|
|
\
|
|
if (len_) \
|
|
{ \
|
|
VEC(T) dummy; \
|
|
\
|
|
/* We must request exact size allocation, hence the negation. */ \
|
|
new_vec_ = (VEC (T) *) \
|
|
vec_o_reserve (NULL, -len_, vec_offset (T, &dummy), sizeof (T)); \
|
|
\
|
|
new_vec_->num = len_; \
|
|
memcpy (new_vec_->vec, vec_->vec, sizeof (T) * len_); \
|
|
} \
|
|
return new_vec_; \
|
|
} \
|
|
\
|
|
static inline VEC(T) *VEC_OP (T,merge) (VEC(T) *vec1_, VEC(T) *vec2_) \
|
|
{ \
|
|
if (vec1_ && vec2_) \
|
|
{ \
|
|
VEC(T) dummy; \
|
|
size_t len_ = vec1_->num + vec2_->num; \
|
|
VEC (T) *new_vec_ = NULL; \
|
|
\
|
|
/* We must request exact size allocation, hence the negation. */ \
|
|
new_vec_ = (VEC (T) *) \
|
|
vec_o_reserve (NULL, -len_, vec_offset (T, &dummy), sizeof (T)); \
|
|
\
|
|
new_vec_->num = len_; \
|
|
memcpy (new_vec_->vec, vec1_->vec, sizeof (T) * vec1_->num); \
|
|
memcpy (new_vec_->vec + vec1_->num, vec2_->vec, \
|
|
sizeof (T) * vec2_->num); \
|
|
\
|
|
return new_vec_; \
|
|
} \
|
|
else \
|
|
return VEC_copy (T, vec1_ ? vec1_ : vec2_); \
|
|
} \
|
|
\
|
|
static inline void VEC_OP (T,free) \
|
|
(VEC(T) **vec_) \
|
|
{ \
|
|
if (*vec_) \
|
|
vec_free_ (*vec_); \
|
|
*vec_ = NULL; \
|
|
} \
|
|
\
|
|
static inline void VEC_OP (T,cleanup) \
|
|
(void *arg_) \
|
|
{ \
|
|
VEC(T) **vec_ = (VEC(T) **) arg_; \
|
|
if (*vec_) \
|
|
vec_free_ (*vec_); \
|
|
*vec_ = NULL; \
|
|
} \
|
|
\
|
|
static inline int VEC_OP (T,reserve) \
|
|
(VEC(T) **vec_, int alloc_ VEC_ASSERT_DECL) \
|
|
{ \
|
|
VEC(T) dummy; \
|
|
int extend = !VEC_OP (T,space) (*vec_, alloc_ < 0 ? -alloc_ : alloc_ \
|
|
VEC_ASSERT_PASS); \
|
|
\
|
|
if (extend) \
|
|
*vec_ = (VEC(T) *) \
|
|
vec_o_reserve (*vec_, alloc_, vec_offset (T, &dummy), sizeof (T)); \
|
|
\
|
|
return extend; \
|
|
} \
|
|
\
|
|
static inline void VEC_OP (T,safe_grow) \
|
|
(VEC(T) **vec_, int size_ VEC_ASSERT_DECL) \
|
|
{ \
|
|
vec_assert (size_ >= 0 && VEC_OP(T,length) (*vec_) <= (unsigned)size_, \
|
|
"safe_grow"); \
|
|
VEC_OP (T,reserve) \
|
|
(vec_, (int)(*vec_ ? (*vec_)->num : 0) - size_ VEC_ASSERT_PASS); \
|
|
(*vec_)->num = size_; \
|
|
} \
|
|
\
|
|
static inline T *VEC_OP (T,safe_push) \
|
|
(VEC(T) **vec_, const T *obj_ VEC_ASSERT_DECL) \
|
|
{ \
|
|
VEC_OP (T,reserve) (vec_, 1 VEC_ASSERT_PASS); \
|
|
\
|
|
return VEC_OP (T,quick_push) (*vec_, obj_ VEC_ASSERT_PASS); \
|
|
} \
|
|
\
|
|
static inline T *VEC_OP (T,safe_insert) \
|
|
(VEC(T) **vec_, unsigned ix_, const T *obj_ VEC_ASSERT_DECL) \
|
|
{ \
|
|
VEC_OP (T,reserve) (vec_, 1 VEC_ASSERT_PASS); \
|
|
\
|
|
return VEC_OP (T,quick_insert) (*vec_, ix_, obj_ VEC_ASSERT_PASS); \
|
|
}
|
|
|
|
#endif /* GDB_VEC_H */
|