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2.5-18.1
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@ -1,5 +1,6 @@
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/* Compatibility functions for floating point formatting.
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Copyright (C) 1995, 1996, 1997, 1999, 2002 Free Software Foundation, Inc.
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Copyright (C) 1995, 1996, 1997, 1999, 2002, 2006
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Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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@ -23,6 +24,7 @@
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#include <sys/param.h>
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#include <float.h>
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#include <bits/libc-lock.h>
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#include <math_ldbl_opt.h>
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#ifndef FLOAT_TYPE
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# define FLOAT_TYPE double
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@ -44,10 +46,14 @@
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# error "NDIGIT_MAX must be precomputed"
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# define NDIGIT_MAX (lrint (ceil (M_LN2 / M_LN10 * DBL_MANT_DIG + 1.0)))
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# endif
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#else
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# define LONG_DOUBLE_CVT
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#endif
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#define APPEND(a, b) APPEND2 (a, b)
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#define APPEND2(a, b) a##b
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#define __APPEND(a, b) __APPEND2 (a, b)
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#define __APPEND2(a, b) __##a##b
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#define FCVT_BUFFER APPEND (FUNC_PREFIX, fcvt_buffer)
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@ -60,14 +66,14 @@ static char ECVT_BUFFER[MAXDIG];
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libc_freeres_ptr (static char *FCVT_BUFPTR);
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char *
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APPEND (FUNC_PREFIX, fcvt) (value, ndigit, decpt, sign)
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__APPEND (FUNC_PREFIX, fcvt) (value, ndigit, decpt, sign)
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FLOAT_TYPE value;
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int ndigit, *decpt, *sign;
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{
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if (FCVT_BUFPTR == NULL)
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{
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if (APPEND (FUNC_PREFIX, fcvt_r) (value, ndigit, decpt, sign,
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FCVT_BUFFER, MAXDIG) != -1)
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if (__APPEND (FUNC_PREFIX, fcvt_r) (value, ndigit, decpt, sign,
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FCVT_BUFFER, MAXDIG) != -1)
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return FCVT_BUFFER;
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FCVT_BUFPTR = (char *) malloc (FCVT_MAXDIG);
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@ -75,26 +81,26 @@ APPEND (FUNC_PREFIX, fcvt) (value, ndigit, decpt, sign)
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return FCVT_BUFFER;
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}
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(void) APPEND (FUNC_PREFIX, fcvt_r) (value, ndigit, decpt, sign,
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FCVT_BUFPTR, FCVT_MAXDIG);
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(void) __APPEND (FUNC_PREFIX, fcvt_r) (value, ndigit, decpt, sign,
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FCVT_BUFPTR, FCVT_MAXDIG);
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return FCVT_BUFPTR;
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}
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char *
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APPEND (FUNC_PREFIX, ecvt) (value, ndigit, decpt, sign)
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__APPEND (FUNC_PREFIX, ecvt) (value, ndigit, decpt, sign)
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FLOAT_TYPE value;
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int ndigit, *decpt, *sign;
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{
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(void) APPEND (FUNC_PREFIX, ecvt_r) (value, ndigit, decpt, sign,
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ECVT_BUFFER, MAXDIG);
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(void) __APPEND (FUNC_PREFIX, ecvt_r) (value, ndigit, decpt, sign,
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ECVT_BUFFER, MAXDIG);
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return ECVT_BUFFER;
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}
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char *
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APPEND (FUNC_PREFIX, gcvt) (value, ndigit, buf)
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__APPEND (FUNC_PREFIX, gcvt) (value, ndigit, buf)
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FLOAT_TYPE value;
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int ndigit;
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char *buf;
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@ -102,3 +108,26 @@ APPEND (FUNC_PREFIX, gcvt) (value, ndigit, buf)
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sprintf (buf, "%.*" FLOAT_FMT_FLAG "g", MIN (ndigit, NDIGIT_MAX), value);
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return buf;
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}
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#if LONG_DOUBLE_COMPAT (libc, GLIBC_2_0)
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# ifdef LONG_DOUBLE_CVT
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# define cvt_symbol(symbol) \
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cvt_symbol_1 (libc, __APPEND (FUNC_PREFIX, symbol), \
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APPEND (FUNC_PREFIX, symbol), GLIBC_2_4)
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# define cvt_symbol_1(lib, local, symbol, version) \
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versioned_symbol (lib, local, symbol, version)
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# else
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# define cvt_symbol(symbol) \
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cvt_symbol_1 (libc, __APPEND (FUNC_PREFIX, symbol), \
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APPEND (q, symbol), GLIBC_2_0); \
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strong_alias (__APPEND (FUNC_PREFIX, symbol), APPEND (FUNC_PREFIX, symbol))
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# define cvt_symbol_1(lib, local, symbol, version) \
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compat_symbol (lib, local, symbol, version)
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# endif
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#else
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# define cvt_symbol(symbol) \
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strong_alias (__APPEND (FUNC_PREFIX, symbol), APPEND (FUNC_PREFIX, symbol))
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#endif
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cvt_symbol(fcvt);
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cvt_symbol(ecvt);
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cvt_symbol(gcvt);
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