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The 'kind' keyword has two uses in Fortran, it is the name of a builtin intrinsic function, and it is also a keyword used to create a type of a specific kind. This commit adds support for using kind as an intrinsic function, and also adds some initial support for using kind to create types of a specific kind. This commit only allows the creation of the type 'character(kind=1)', however, it will be easy enough to extend this in future to support more type kinds. The kind of any expression can be queried using the kind intrinsic function. At the moment the kind returned corresponds to the size of the type, this matches how gfortran handles kinds. However, the correspondence between kind and type size depends on the compiler and/or the specific target, so this might not be correct for everyone. If we want to support different compilers/targets in future the code to compute the kind from a type will need to be updated. gdb/ChangeLog: * expprint.c (dump_subexp_body_standard): Support UNOP_KIND. * f-exp.y: Define 'KIND' token. (exp): New pattern for KIND expressions. (ptype): Handle types with a kind extension. (direct_abs_decl): Extend to spot kind extensions. (f77_keywords): Add 'kind' to the list. (push_kind_type): New function. (convert_to_kind_type): New function. * f-lang.c (evaluate_subexp_f): Support UNOP_KIND. * parse.c (operator_length_standard): Likewise. * parser-defs.h (enum type_pieces): Add tp_kind. * std-operator.def: Add UNOP_KIND. gdb/testsuite/ChangeLog: * gdb.fortran/intrinsics.exp: New file. * gdb.fortran/intrinsics.f90: New file. * gdb.fortran/type-kinds.exp: New file. |
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README
README for GNU development tools This directory contains various GNU compilers, assemblers, linkers, debuggers, etc., plus their support routines, definitions, and documentation. If you are receiving this as part of a GDB release, see the file gdb/README. If with a binutils release, see binutils/README; if with a libg++ release, see libg++/README, etc. That'll give you info about this package -- supported targets, how to use it, how to report bugs, etc. It is now possible to automatically configure and build a variety of tools with one command. To build all of the tools contained herein, run the ``configure'' script here, e.g.: ./configure make To install them (by default in /usr/local/bin, /usr/local/lib, etc), then do: make install (If the configure script can't determine your type of computer, give it the name as an argument, for instance ``./configure sun4''. You can use the script ``config.sub'' to test whether a name is recognized; if it is, config.sub translates it to a triplet specifying CPU, vendor, and OS.) If you have more than one compiler on your system, it is often best to explicitly set CC in the environment before running configure, and to also set CC when running make. For example (assuming sh/bash/ksh): CC=gcc ./configure make A similar example using csh: setenv CC gcc ./configure make Much of the code and documentation enclosed is copyright by the Free Software Foundation, Inc. See the file COPYING or COPYING.LIB in the various directories, for a description of the GNU General Public License terms under which you can copy the files. REPORTING BUGS: Again, see gdb/README, binutils/README, etc., for info on where and how to report problems.