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* math/math.h: Unconditionally include bits/mathdef.h.  Declare
	long double functions only if __NO_LONG_DOUBLE_MATH is not
	defined.
	* sysdeps/generic/bits/mathdef.h: Define only if __USE_ISOC9X.
	Define __NO_LONG_DOUBLE_MATH.
	* sysdeps/m68k/fpu/bits/mathdef.h: Define only if __USE_ISOC9X.
	* sysdeps/i386/fpu/bits/mathdef.h: Likewise.
This commit is contained in:
Ulrich Drepper
1998-11-05 18:07:15 +00:00
parent 9a821cf90b
commit d76bd17ff9
6 changed files with 55 additions and 30 deletions
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8
ChangeLog
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@@ -1,5 +1,13 @@
1998-11-05 Ulrich Drepper <drepper@cygnus.com> 1998-11-05 Ulrich Drepper <drepper@cygnus.com>
* math/math.h: Unconditionally include bits/mathdef.h. Declare
long double functions only if __NO_LONG_DOUBLE_MATH is not
defined.
* sysdeps/generic/bits/mathdef.h: Define only if __USE_ISOC9X.
Define __NO_LONG_DOUBLE_MATH.
* sysdeps/m68k/fpu/bits/mathdef.h: Define only if __USE_ISOC9X.
* sysdeps/i386/fpu/bits/mathdef.h: Likewise.
* elf/rtld.c: Add a few __builtin_expects where they will improve * elf/rtld.c: Add a few __builtin_expects where they will improve
a lot. a lot.

10
bits/mathdef.h
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@@ -1,4 +1,4 @@
/* Copyright (C) 1997 Free Software Foundation, Inc. /* Copyright (C) 1997, 1998 Free Software Foundation, Inc.
This file is part of the GNU C Library. This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or The GNU C Library is free software; you can redistribute it and/or
@@ -20,7 +20,7 @@
# error "Never use <bits/mathdef.h> directly; include <math.h> instead" # error "Never use <bits/mathdef.h> directly; include <math.h> instead"
#endif #endif
#ifdef __USE_ISOC9X
/* Normally, there is no long double type and the `float' and `double' /* Normally, there is no long double type and the `float' and `double'
expressions are evaluated as `double'. */ expressions are evaluated as `double'. */
typedef double float_t; /* `float' expressions are evaluated as typedef double float_t; /* `float' expressions are evaluated as
@@ -41,3 +41,9 @@ typedef double double_t; /* `double' expressions are evaluated as
/* Number of decimal digits for the `double' type. */ /* Number of decimal digits for the `double' type. */
# define DECIMAL_DIG 15 # define DECIMAL_DIG 15
#endif /* ISO C 9X */
/* Signal that we do not really have a `long double'. The disables the
declaration of all the `long double' function variants. */
#define __NO_LONG_DOUBLE_MATH 1

5
math/math.h
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@@ -36,6 +36,8 @@ __BEGIN_DECLS
#ifdef __USE_ISOC9X #ifdef __USE_ISOC9X
# include <bits/nan.h> # include <bits/nan.h>
#endif #endif
/* Get general and ISO C 9X specific information. */
#include <bits/mathdef.h>
/* The file <bits/mathcalls.h> contains the prototypes for all the /* The file <bits/mathcalls.h> contains the prototypes for all the
@@ -81,7 +83,7 @@ __BEGIN_DECLS
# undef _Mdouble_ # undef _Mdouble_
# undef __MATH_PRECNAME # undef __MATH_PRECNAME
# if __STDC__ - 0 || __GNUC__ - 0 # if __STDC__ - 0 || __GNUC__ - 0 && !defined __NO_LONG_DOUBLE_MATH
/* Include the file of declarations again, this time using `long double' /* Include the file of declarations again, this time using `long double'
instead of `double' and appending l to each function name. */ instead of `double' and appending l to each function name. */
@@ -147,7 +149,6 @@ extern int signgam;
decimal and all internal floating-point formats. decimal and all internal floating-point formats.
*/ */
# include <bits/mathdef.h>
/* All floating-point numbers can be put in one of these categories. */ /* All floating-point numbers can be put in one of these categories. */
enum enum

10
sysdeps/generic/bits/mathdef.h
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@@ -1,4 +1,4 @@
/* Copyright (C) 1997 Free Software Foundation, Inc. /* Copyright (C) 1997, 1998 Free Software Foundation, Inc.
This file is part of the GNU C Library. This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or The GNU C Library is free software; you can redistribute it and/or
@@ -20,7 +20,7 @@
# error "Never use <bits/mathdef.h> directly; include <math.h> instead" # error "Never use <bits/mathdef.h> directly; include <math.h> instead"
#endif #endif
#ifdef __USE_ISOC9X
/* Normally, there is no long double type and the `float' and `double' /* Normally, there is no long double type and the `float' and `double'
expressions are evaluated as `double'. */ expressions are evaluated as `double'. */
typedef double float_t; /* `float' expressions are evaluated as typedef double float_t; /* `float' expressions are evaluated as
@@ -41,3 +41,9 @@ typedef double double_t; /* `double' expressions are evaluated as
/* Number of decimal digits for the `double' type. */ /* Number of decimal digits for the `double' type. */
# define DECIMAL_DIG 15 # define DECIMAL_DIG 15
#endif /* ISO C 9X */
/* Signal that we do not really have a `long double'. The disables the
declaration of all the `long double' function variants. */
#define __NO_LONG_DOUBLE_MATH 1

6
sysdeps/i386/fpu/bits/mathdef.h
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@@ -1,4 +1,4 @@
/* Copyright (C) 1997 Free Software Foundation, Inc. /* Copyright (C) 1997, 1998 Free Software Foundation, Inc.
This file is part of the GNU C Library. This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or The GNU C Library is free software; you can redistribute it and/or
@@ -20,7 +20,7 @@
# error "Never use <bits/mathdef.h> directly; include <math.h> instead" # error "Never use <bits/mathdef.h> directly; include <math.h> instead"
#endif #endif
#ifdef __USE_ISOC9X
/* The ix87 FPUs evaluate all values in the 80 bit floating-point format /* The ix87 FPUs evaluate all values in the 80 bit floating-point format
which is also available for the user as `long double'. Therefore we which is also available for the user as `long double'. Therefore we
define: */ define: */
@@ -41,3 +41,5 @@ typedef long double double_t; /* `double' expressions are evaluated as
/* Number of decimal digits for the `long double' type. */ /* Number of decimal digits for the `long double' type. */
# define DECIMAL_DIG 18 # define DECIMAL_DIG 18
#endif /* ISO C 9X */

6
sysdeps/m68k/fpu/bits/mathdef.h
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@@ -1,4 +1,4 @@
/* Copyright (C) 1997 Free Software Foundation, Inc. /* Copyright (C) 1997, 1998 Free Software Foundation, Inc.
This file is part of the GNU C Library. This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or The GNU C Library is free software; you can redistribute it and/or
@@ -20,7 +20,7 @@
# error "Never use <bits/mathdef.h> directly; include <math.h> instead" # error "Never use <bits/mathdef.h> directly; include <math.h> instead"
#endif #endif
#ifdef __USE_ISOC9X
/* The m68k FPUs evaluate all values in the 96 bit floating-point format /* The m68k FPUs evaluate all values in the 96 bit floating-point format
which is also available for the user as `long double'. Therefore we which is also available for the user as `long double'. Therefore we
define: */ define: */
@@ -41,3 +41,5 @@ typedef long double double_t; /* `double' expressions are evaluated as
/* Number of decimal digits for the `long double' type. */ /* Number of decimal digits for the `long double' type. */
# define DECIMAL_DIG 18 # define DECIMAL_DIG 18
#endif /* ISO C 9X */