view contrib/chg/util.h @ 36685:2a258985ffeb

revsetlang: add a hint for more useful parse errors

This logic is largely based on the similar logic added to template error
messages in D2608 and D2609, but with a few tweaks based on how revsets
actually work.

Differential Revision: https://phab.mercurial-scm.org/D2619

/*
 * Utility functions
 *
 * Copyright (c) 2011 Yuya Nishihara <[e-mail]>
 *
 * This software may be used and distributed according to the terms of the
 * GNU General Public License version 2 or any later version.
 */

#ifndef UTIL_H_
#define UTIL_H_

#ifdef __GNUC__
#define PRINTF_FORMAT_ __attribute__((format(printf, 1, 2)))
#define UNUSED_ __attribute__((unused))
#else
#define PRINTF_FORMAT_
#define UNUSED_
#endif

void abortmsg(const char *fmt, ...) PRINTF_FORMAT_;
void abortmsgerrno(const char *fmt, ...) PRINTF_FORMAT_;

void enablecolor(void);
void enabledebugmsg(void);
void debugmsg(const char *fmt, ...) PRINTF_FORMAT_;

void fchdirx(int dirfd);
void fsetcloexec(int fd);
void *mallocx(size_t size);
void *reallocx(void *ptr, size_t size);

int runshellcmd(const char *cmd, const char *envp[], const char *cwd);

#endif /* UTIL_H_ */