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mirror of https://sourceware.org/git/glibc.git synced 2025-07-29 11:41:21 +03:00
This commit is contained in:
Jakub Jelinek
2007-07-12 18:26:36 +00:00
parent 7d58530341
commit 0ecb606cb6
6215 changed files with 494638 additions and 305010 deletions

View File

@ -1,5 +1,6 @@
/* Compatibility functions for floating point formatting.
Copyright (C) 1995, 1996, 1997, 1999, 2002 Free Software Foundation, Inc.
Copyright (C) 1995, 1996, 1997, 1999, 2002, 2006
Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@ -23,6 +24,7 @@
#include <sys/param.h>
#include <float.h>
#include <bits/libc-lock.h>
#include <math_ldbl_opt.h>
#ifndef FLOAT_TYPE
# define FLOAT_TYPE double
@ -44,10 +46,14 @@
# error "NDIGIT_MAX must be precomputed"
# define NDIGIT_MAX (lrint (ceil (M_LN2 / M_LN10 * DBL_MANT_DIG + 1.0)))
# endif
#else
# define LONG_DOUBLE_CVT
#endif
#define APPEND(a, b) APPEND2 (a, b)
#define APPEND2(a, b) a##b
#define __APPEND(a, b) __APPEND2 (a, b)
#define __APPEND2(a, b) __##a##b
#define FCVT_BUFFER APPEND (FUNC_PREFIX, fcvt_buffer)
@ -60,14 +66,14 @@ static char ECVT_BUFFER[MAXDIG];
libc_freeres_ptr (static char *FCVT_BUFPTR);
char *
APPEND (FUNC_PREFIX, fcvt) (value, ndigit, decpt, sign)
__APPEND (FUNC_PREFIX, fcvt) (value, ndigit, decpt, sign)
FLOAT_TYPE value;
int ndigit, *decpt, *sign;
{
if (FCVT_BUFPTR == NULL)
{
if (APPEND (FUNC_PREFIX, fcvt_r) (value, ndigit, decpt, sign,
FCVT_BUFFER, MAXDIG) != -1)
if (__APPEND (FUNC_PREFIX, fcvt_r) (value, ndigit, decpt, sign,
FCVT_BUFFER, MAXDIG) != -1)
return FCVT_BUFFER;
FCVT_BUFPTR = (char *) malloc (FCVT_MAXDIG);
@ -75,26 +81,26 @@ APPEND (FUNC_PREFIX, fcvt) (value, ndigit, decpt, sign)
return FCVT_BUFFER;
}
(void) APPEND (FUNC_PREFIX, fcvt_r) (value, ndigit, decpt, sign,
FCVT_BUFPTR, FCVT_MAXDIG);
(void) __APPEND (FUNC_PREFIX, fcvt_r) (value, ndigit, decpt, sign,
FCVT_BUFPTR, FCVT_MAXDIG);
return FCVT_BUFPTR;
}
char *
APPEND (FUNC_PREFIX, ecvt) (value, ndigit, decpt, sign)
__APPEND (FUNC_PREFIX, ecvt) (value, ndigit, decpt, sign)
FLOAT_TYPE value;
int ndigit, *decpt, *sign;
{
(void) APPEND (FUNC_PREFIX, ecvt_r) (value, ndigit, decpt, sign,
ECVT_BUFFER, MAXDIG);
(void) __APPEND (FUNC_PREFIX, ecvt_r) (value, ndigit, decpt, sign,
ECVT_BUFFER, MAXDIG);
return ECVT_BUFFER;
}
char *
APPEND (FUNC_PREFIX, gcvt) (value, ndigit, buf)
__APPEND (FUNC_PREFIX, gcvt) (value, ndigit, buf)
FLOAT_TYPE value;
int ndigit;
char *buf;
@ -102,3 +108,26 @@ APPEND (FUNC_PREFIX, gcvt) (value, ndigit, buf)
sprintf (buf, "%.*" FLOAT_FMT_FLAG "g", MIN (ndigit, NDIGIT_MAX), value);
return buf;
}
#if LONG_DOUBLE_COMPAT (libc, GLIBC_2_0)
# ifdef LONG_DOUBLE_CVT
# define cvt_symbol(symbol) \
cvt_symbol_1 (libc, __APPEND (FUNC_PREFIX, symbol), \
APPEND (FUNC_PREFIX, symbol), GLIBC_2_4)
# define cvt_symbol_1(lib, local, symbol, version) \
versioned_symbol (lib, local, symbol, version)
# else
# define cvt_symbol(symbol) \
cvt_symbol_1 (libc, __APPEND (FUNC_PREFIX, symbol), \
APPEND (q, symbol), GLIBC_2_0); \
strong_alias (__APPEND (FUNC_PREFIX, symbol), APPEND (FUNC_PREFIX, symbol))
# define cvt_symbol_1(lib, local, symbol, version) \
compat_symbol (lib, local, symbol, version)
# endif
#else
# define cvt_symbol(symbol) \
strong_alias (__APPEND (FUNC_PREFIX, symbol), APPEND (FUNC_PREFIX, symbol))
#endif
cvt_symbol(fcvt);
cvt_symbol(ecvt);
cvt_symbol(gcvt);