Viewing file:  printf.c (4.58 KB) -rw-r--r--
Select action/file-type:
 (+) |  (+) |  (+) | Code (+) | Session (+) |  (+) | SDB (+) |  (+) |  (+) |  (+) |  (+) |  (+) |
/* Formatted output functions (printf functions family).
Copyright 2007-2020 Free Software Foundation, Inc.
Contributed by the AriC and Caramba projects, INRIA.
This file is part of the GNU MPFR Library.
The GNU MPFR Library is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 3 of the License, or (at your
option) any later version.
The GNU MPFR Library 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 Lesser General Public
License for more details.
You should have received a copy of the GNU Lesser General Public License
along with the GNU MPFR Library; see the file COPYING.LESSER. If not, see
https://www.gnu.org/licenses/ or write to the Free Software Foundation, Inc.,
51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. */
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
/* The mpfr_printf-like functions are defined only if <stdarg.h> exists.
Since they use mpf_t, they cannot be defined with mini-gmp. */
#if defined(HAVE_STDARG) && !defined(MPFR_USE_MINI_GMP)
#include <stdarg.h>
#include "mpfr-impl.h"
#ifdef _MPFR_H_HAVE_FILE
/* Each printf-like function calls mpfr_vasnprintf_aux (directly or
via mpfr_vasprintf), which
- returns the number of characters to be written excluding the
terminating null character (disregarding the size argument);
- returns -1 and sets the erange flag if this number exceeds INT_MAX
(in that case, also sets errno to EOVERFLOW on POSIX systems). */
#define GET_STR_VA(sz, str, fmt, ap) \
do \
{ \
sz = mpfr_vasprintf (&(str), fmt, ap); \
if (sz < 0) \
{ \
if (str) \
mpfr_free_str (str); \
return -1; \
} \
} while (0)
#define GET_STR(sz, str, fmt) \
do \
{ \
va_list ap; \
va_start(ap, fmt); \
sz = mpfr_vasprintf (&(str), fmt, ap); \
va_end (ap); \
if (sz < 0) \
{ \
if (str) \
mpfr_free_str (str); \
return -1; \
} \
} while (0)
int
mpfr_printf (const char *fmt, ...)
{
char *str;
int ret;
GET_STR (ret, str, fmt);
ret = printf ("%s", str);
mpfr_free_str (str);
return ret;
}
int
mpfr_vprintf (const char *fmt, va_list ap)
{
char *str;
int ret;
GET_STR_VA (ret, str, fmt, ap);
ret = printf ("%s", str);
mpfr_free_str (str);
return ret;
}
int
mpfr_fprintf (FILE *fp, const char *fmt, ...)
{
char *str;
int ret;
GET_STR (ret, str, fmt);
ret = fprintf (fp, "%s", str);
mpfr_free_str (str);
return ret;
}
int
mpfr_vfprintf (FILE *fp, const char *fmt, va_list ap)
{
char *str;
int ret;
GET_STR_VA (ret, str, fmt, ap);
ret = fprintf (fp, "%s", str);
mpfr_free_str (str);
return ret;
}
#endif /* _MPFR_H_HAVE_FILE */
int
mpfr_sprintf (char *buf, const char *fmt, ...)
{
char *str;
int ret;
GET_STR (ret, str, fmt);
ret = sprintf (buf, "%s", str);
mpfr_free_str (str);
return ret;
}
int
mpfr_vsprintf (char *buf, const char *fmt, va_list ap)
{
char *str;
int ret;
GET_STR_VA (ret, str, fmt, ap);
ret = sprintf (buf, "%s", str);
mpfr_free_str (str);
return ret;
}
int
mpfr_snprintf (char *buf, size_t size, const char *fmt, ...)
{
int ret;
va_list ap;
va_start(ap, fmt);
ret = mpfr_vasnprintf_aux (NULL, buf, size, fmt, ap);
va_end (ap);
return ret;
}
int
mpfr_vsnprintf (char *buf, size_t size, const char *fmt, va_list ap)
{
return mpfr_vasnprintf_aux (NULL, buf, size, fmt, ap);
}
int
mpfr_asprintf (char **pp, const char *fmt, ...)
{
int ret;
GET_STR (ret, *pp, fmt);
return ret;
}
int
mpfr_vasprintf (char **ptr, const char *fmt, va_list ap)
{
return mpfr_vasnprintf_aux (ptr, NULL, 0, fmt, ap);
}
#else /* HAVE_STDARG */
/* Avoid an empty translation unit (see ISO C99, 6.9) */
typedef int foo;
#endif /* HAVE_STDARG */
|
