108 lines
3.5 KiB
C
108 lines
3.5 KiB
C
/*
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* Copyright (c) 2000-2001
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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#ifndef UTIL_H
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#define UTIL_H
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#include <assert.h>
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#include <stdarg.h>
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#include <stdlib.h>
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#include <regions.h>
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#include <ansidecl.h>
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#include "compiler.h"
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#include "linkage.h"
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#include "bool.h"
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EXTERN_C_BEGIN
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#ifdef HAVE_VARIADIC_MACROS
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#define fail(args...) __fail(__FILE__, __LINE__, __FUNCTION__, args)
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#else
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void fail(const char *fmt, ...);
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#endif
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void __fail(const char *file, unsigned int line,
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const char *func, const char *fmt, ...) __attribute__ ((__noreturn__));
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/* insist(action) is like assert(action), but action may have
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side-effects */
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#ifdef NDEBUG
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# define insist(action) (action)
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#else
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# define insist assert
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#endif
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#ifdef NDEBUG
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# define insistnot(action) (action)
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#else
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# define insistnot(action) assert(!(action))
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#endif
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void failure(const char *message);
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/* Concatenate 2 strings, allocating space in r for the result */
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char *rstrcat(region, const char *, const char *);
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/* Concatenate n strings, allocating space in r for the result. The
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last argument should be a null pointer. */
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char *rstrscat(region, ...);
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/* Convert an integer to a string, storing the result in r */
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const char *inttostr(region r, int);
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/* sprintf a string, allocating space in r for the result */
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char *rsprintf(region r, const char *fmt, ...);
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char *rvsprintf(region r, const char *fmt, va_list args);
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/* Convert a pointer to an ascii string with leading 0x. Re-uses
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internal buffer. */
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char *ptr_to_ascii(void *ptr);
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/* Convert a pointer to an integer */
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long ptr_hash(void *ptr);
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/* Return TRUE iff ptr1 == ptr2 */
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bool ptr_eq(void *ptr1, void *ptr2);
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/* Return TRUE iff s1 == s2 */
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bool str_eq(const char *s1, const char *s2);
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/* A total ordering on pointers. Returns 0 if ptr1 = ptr2, a value <0
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if ptr1 < ptr2, or a value >0 if ptr1 > ptr2. */
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int ptr_cmp(const void *ptr1, const void *ptr2);
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static inline int min(int a, int b) { if (a < b) return a; else return b; }
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static inline int max(int a, int b) { if (a < b) return b; else return a; }
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EXTERN_C_END
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#endif
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