lib/c-xvasprintf.h

   1 /* vasprintf and asprintf, with out-of-memory checking, in C locale.
   2    Copyright (C) 2002-2004, 2006-2020 Free Software Foundation, Inc.
   3
   4    This program is free software: you can redistribute it and/or modify
   5    it under the terms of the GNU General Public License as published by
   6    the Free Software Foundation; either version 3 of the License, or
   7    (at your option) any later version.
   8
   9    This program is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12    GNU General Public License for more details.
  13
  14    You should have received a copy of the GNU General Public License
  15    along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
  16
  17 #ifndef _C_XVASPRINTF_H
  18 #define _C_XVASPRINTF_H
  19
  20 /* Get va_list.  */
  21 #include <stdarg.h>
  22
  23 /* Get _GL_ATTRIBUTE_SPEC_PRINTF_STANDARD.  */
  24 #include <stdio.h>
  25
  26 #ifdef __cplusplus
  27 extern "C" {
  28 #endif
  29
  30 /* Write formatted output to a string dynamically allocated with malloc(),
  31    and return it.  Upon [ENOMEM] memory allocation error, call xalloc_die.
  32    On some other error
  33      - [EOVERFLOW] resulting string length is > INT_MAX,
  34      - [EINVAL] invalid format string,
  35      - [EILSEQ] error during conversion between wide and multibyte characters,
  36    return NULL.
  37
  38    Formatting takes place in the C locale, that is, the decimal point
  39    used in floating-point formatting directives is always '.'. */
  40 extern char *c_xasprintf (const char *format, ...)
  41        _GL_ATTRIBUTE_FORMAT ((_GL_ATTRIBUTE_SPEC_PRINTF_STANDARD, 1, 2));
  42 extern char *c_xvasprintf (const char *format, va_list args)
  43        _GL_ATTRIBUTE_FORMAT ((_GL_ATTRIBUTE_SPEC_PRINTF_STANDARD, 1, 0));
  44
  45 #ifdef __cplusplus
  46 }
  47 #endif
  48
  49 #endif /* _C_XVASPRINTF_H */