cjdns/util/Gcc.h

/* vim: set expandtab ts=4 sw=4: */
/*
 * You may redistribute this program and/or modify it under the terms of
 * the GNU General Public License as published by the Free Software Foundation,
 * either version 3 of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
#ifndef Gcc_H
#define Gcc_H

#if defined(__GNUC__) && (__GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ > 4))

#define Gcc_PRINTF( format_idx, arg_idx ) \
    __attribute__((__format__ (__printf__, format_idx, arg_idx)))
#define Gcc_NORETURN \
    __attribute__((__noreturn__))

#define Gcc_NONNULL(...) \
    __attribute__((__nonnull__(__VA_ARGS__)))

#define Gcc_PURE \
    __attribute__ ((__pure__))


#else

#define Gcc_PRINTF( format_idx, arg_idx )
#define Gcc_NORETURN
#define Gcc_NONNULL(num)
#define Gcc_PURE

#endif

#define Gcc_SHORT_FILE <?js return '"'+__FILE__.substring(__FILE__.lastIndexOf('/')+1)+'"'; ?>
#define Gcc_FILE Gcc_SHORT_FILE
#define Gcc_LINE __LINE__

Gcc_PRINTF(1,2)
static inline void Gcc_checkPrintf(const char* format, ...)
{
    // This does nothing except to trigger warnings if the format is wrong.
}

#endif