76 lines
2.9 KiB
C
Executable File
76 lines
2.9 KiB
C
Executable File
/* vasprintf and asprintf, in C locale.
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Copyright (C) 2002-2004, 2006-2024 Free Software Foundation, Inc.
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This file is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as
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published by the Free Software Foundation; either version 2.1 of the
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License, or (at your option) any later version.
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This file is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>. */
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#ifndef _C_VASPRINTF_H
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#define _C_VASPRINTF_H
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/* This file uses _GL_ATTRIBUTE_FORMAT, _GL_ATTRIBUTE_NODISCARD. */
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#if !_GL_CONFIG_H_INCLUDED
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#error "Please include config.h first."
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#endif
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/* Get va_list. */
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#include <stdarg.h>
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/* Get ptrdiff_t. */
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#include <stddef.h>
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/* Get _GL_ATTRIBUTE_SPEC_PRINTF_STANDARD. */
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#include <stdio.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* Prints formatted output to a string dynamically allocated with malloc().
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If the memory allocation succeeds, it stores the address of the string in
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*RESULT and returns the number of resulting bytes, excluding the trailing
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NUL. Upon memory allocation error, or some other error, it returns -1
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with errno set.
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Failure code EOVERFLOW can only occur when a width > INT_MAX is used.
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Therefore, if the format string is valid and does not use %ls/%lc
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directives nor widths, the only possible failure code is ENOMEM.
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Formatting takes place in the C locale, that is, the decimal point
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used in floating-point formatting directives is always '.'. */
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_GL_ATTRIBUTE_NODISCARD
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ptrdiff_t c_aszprintf (char **resultp, const char *format, ...)
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_GL_ATTRIBUTE_FORMAT ((_GL_ATTRIBUTE_SPEC_PRINTF_STANDARD, 2, 3));
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_GL_ATTRIBUTE_NODISCARD
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ptrdiff_t c_vaszprintf (char **resultp, const char *format, va_list args)
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_GL_ATTRIBUTE_FORMAT ((_GL_ATTRIBUTE_SPEC_PRINTF_STANDARD, 2, 0));
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/* Prints formatted output to a string dynamically allocated with malloc().
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If the memory allocation succeeds, it stores the address of the string in
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*RESULT and returns the number of resulting bytes, excluding the trailing
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NUL. Upon memory allocation error, or some other error, it returns -1.
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Formatting takes place in the C locale, that is, the decimal point
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used in floating-point formatting directives is always '.'. */
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_GL_ATTRIBUTE_NODISCARD
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int c_asprintf (char **resultp, const char *format, ...)
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_GL_ATTRIBUTE_FORMAT ((_GL_ATTRIBUTE_SPEC_PRINTF_STANDARD, 2, 3));
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_GL_ATTRIBUTE_NODISCARD
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int c_vasprintf (char **resultp, const char *format, va_list args)
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_GL_ATTRIBUTE_FORMAT ((_GL_ATTRIBUTE_SPEC_PRINTF_STANDARD, 2, 0));
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#ifdef __cplusplus
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}
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#endif
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#endif /* _C_VASPRINTF_H */
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