kc3-lang/gnulib/lib/c-xvasprintf.h

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• Hash : f7c9406a
  Author :
  Date : 2024-06-22T12:22:12
  

  c-xvasprintf: Guarantee a non-NULL result.
  
  * lib/c-xvasprintf.h: Clarify the programmer's responsibilities.
  (c_xasprintf, c_xvasprintf): Declare as returning non-NULL.
  * lib/c-xvasprintf.c: Include <stdlib.h>, <string.h>.
  (c_xvasprintf): Call c_vazsprintf instead of c_vasprintf. When some
  other error occurs, emit an error message and abort.
  * modules/c-xvasprintf (Files): Add m4/strerrorname_np.m4.
  (Depends-on): Add extensions, c-vazsprintf. Remove c-vasprintf.
  (configure.ac): Invoke gl_OPTIONAL_STRERRORNAME_NP.
  * NEWS: Mention the change.
  

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• lib/c-xvasprintf.h

• /* vasprintf and asprintf, with out-of-memory checking, in C locale.
     Copyright (C) 2002-2004, 2006-2024 Free Software Foundation, Inc.
  
     This program is free software: you can redistribute it 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 <https://www.gnu.org/licenses/>.  */
  
  #ifndef _C_XVASPRINTF_H
  #define _C_XVASPRINTF_H
  
  /* This file uses _GL_ATTRIBUTE_FORMAT, _GL_ATTRIBUTE_MALLOC,
    _GL_ATTRIBUTE_RETURNS_NONNULL.  */
  #if !_GL_CONFIG_H_INCLUDED
   #error "Please include config.h first."
  #endif
  
  /* Get va_list.  */
  #include <stdarg.h>
  
  /* Get _GL_ATTRIBUTE_SPEC_PRINTF_STANDARD.  */
  #include <stdio.h>
  
  #include <stdlib.h>
  
  #ifdef __cplusplus
  extern "C" {
  #endif
  
  /* Prints formatted output to a string dynamically allocated with malloc(),
     and returns it.  Upon [ENOMEM] memory allocation error, it calls xalloc_die.
  
     It is the responsibility of the programmer to ensure that
       - the format string is valid,
       - the format string does not use %ls or %lc directives, and
       - all widths in the format string and passed as arguments are >= -INT_MAX
         and <= INT_MAX,
     so that other errors
       - [EINVAL] invalid format string,
       - [EILSEQ] error during conversion between wide and multibyte characters,
       - [EOVERFLOW] some specified width is > INT_MAX,
     cannot occur.
  
     Formatting takes place in the C locale, that is, the decimal point
     used in floating-point formatting directives is always '.'. */
  extern char *c_xasprintf (const char *format, ...)
    _GL_ATTRIBUTE_FORMAT ((_GL_ATTRIBUTE_SPEC_PRINTF_STANDARD, 1, 2))
    _GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC_FREE
    _GL_ATTRIBUTE_RETURNS_NONNULL;
  extern char *c_xvasprintf (const char *format, va_list args)
    _GL_ATTRIBUTE_FORMAT ((_GL_ATTRIBUTE_SPEC_PRINTF_STANDARD, 1, 0))
    _GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC_FREE
    _GL_ATTRIBUTE_RETURNS_NONNULL;
  
  #ifdef __cplusplus
  }
  #endif
  
  #endif /* _C_XVASPRINTF_H */
  

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