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111 lines
3.8 KiB
C
111 lines
3.8 KiB
C
/* estream-printf.h - Versatile C-99 compliant printf formatting.
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* Copyright (C) 2007 g10 Code GmbH
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*
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* This file is part of Libestream.
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*
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* Libestream is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published
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* by the Free Software Foundation; either version 2 of the License,
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* or (at your option) any later version.
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*
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* Libestream is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Libestream; if not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef ESTREAM_PRINTF_H
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#define ESTREAM_PRINTF_H
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#include <stdarg.h>
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#include <stdio.h>
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/* To use this file with libraries the following macro is useful:
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#define _ESTREAM_EXT_SYM_PREFIX _foo_
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This prefixes all external symbols with "_foo_".
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For the implementation of the code (estream-printf.c) the following
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macros may be used to tune the implementation for certain systems:
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#define _ESTREAM_PRINTF_MALLOC foo_malloc
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#define _ESTREAM_PRINTF_FREE foo_free
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Make estream_asprintf and estream_vasprintf use foo_malloc and
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foo_free instead of the standard malloc and free functions to
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allocate the memory returned to the caller.
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#define _ESTREAM_PRINTF_EXTRA_INCLUDE "foo.h"
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This includes the file "foo.h" which may provide prototypes for
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the custom memory allocation functions.
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*/
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#ifdef _ESTREAM_EXT_SYM_PREFIX
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#ifndef _ESTREAM_PREFIX
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#define _ESTREAM_PREFIX1(x,y) x ## y
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#define _ESTREAM_PREFIX2(x,y) _ESTREAM_PREFIX1(x,y)
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#define _ESTREAM_PREFIX(x) _ESTREAM_PREFIX2(_ESTREAM_EXT_SYM_PREFIX,x)
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#endif /*_ESTREAM_PREFIX*/
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#define estream_printf_out_t _ESTREAM_PREFIX(estream_printf_out_t)
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#define estream_format _ESTREAM_PREFIX(estream_format)
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#define estream_printf _ESTREAM_PREFIX(estream_printf)
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#define estream_fprintf _ESTREAM_PREFIX(estream_fprintf)
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#define estream_vfprintf _ESTREAM_PREFIX(estream_vfprintf)
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#define estream_snprintf _ESTREAM_PREFIX(estream_snprintf)
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#define estream_vsnprintf _ESTREAM_PREFIX(estream_vsnprintf)
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#define estream_asprintf _ESTREAM_PREFIX(estream_asprintf)
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#define estream_vasprintf _ESTREAM_PREFIX(estream_vasprintf)
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#endif /*_ESTREAM_EXT_SYM_PREFIX*/
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#ifndef _ESTREAM_GCC_A_PRINTF
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#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 5 )
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# define _ESTREAM_GCC_A_PRINTF( f, a ) __attribute__ ((format (printf,f,a)))
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#else
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# define _ESTREAM_GCC_A_PRINTF( f, a )
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#endif
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#endif /*_ESTREAM_GCC_A_PRINTF*/
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#ifdef __cplusplus
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extern "C"
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{
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#if 0
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}
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#endif
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#endif
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typedef int (*estream_printf_out_t)
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(void *outfncarg, const char *buf, size_t buflen);
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int estream_format (estream_printf_out_t outfnc, void *outfncarg,
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const char *format, va_list vaargs)
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_ESTREAM_GCC_A_PRINTF(3,0);
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int estream_printf (const char *format, ...)
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_ESTREAM_GCC_A_PRINTF(1,2);
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int estream_fprintf (FILE *fp, const char *format, ... )
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_ESTREAM_GCC_A_PRINTF(2,3);
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int estream_vfprintf (FILE *fp, const char *format, va_list arg_ptr)
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_ESTREAM_GCC_A_PRINTF(2,0);
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int estream_snprintf (char *buf, size_t bufsize, const char *format, ...)
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_ESTREAM_GCC_A_PRINTF(3,4);
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int estream_vsnprintf (char *buf,size_t bufsize,
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const char *format, va_list arg_ptr)
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_ESTREAM_GCC_A_PRINTF(3,0);
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int estream_asprintf (char **bufp, const char *format, ...)
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_ESTREAM_GCC_A_PRINTF(2,3);
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int estream_vasprintf (char **bufp, const char *format, va_list arg_ptr)
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_ESTREAM_GCC_A_PRINTF(2,0);
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#ifdef __cplusplus
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}
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#endif
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#endif /*ESTREAM_PRINTF_H*/
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