qiurui
/
glibc
mirror of git://sourceware.org/git/glibc.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Define ISO C 9X stuff only if included from math.h and __USE_ISOC9X is 

defined.
This commit is contained in:
Ulrich Drepper 1998-11-10 19:10:36 +00:00
parent 79df5fdb24
commit 200172bd3f
2 changed files with 28 additions and 19 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

43
sysdeps/alpha/fpu/bits/mathdef.h
View File

@ -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.
The GNU C Library is free software; you can redistribute it and/or
@ -16,56 +16,65 @@
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#ifndef _MATH_H
#if !defined _MATH_H && !defined _COMPLEX_H
# error "Never use <bits/mathdef.h> directly; include <math.h> instead"
#endif
/* FIXME! This file describes properties of the compiler, not the machine;
it should not be part of libc! */
#ifdef __GNUC__
# if __STDC__ == 1
#if defined __USE_ISOC9X && defined _MATH_H
# ifdef __GNUC__
# if __STDC__ == 1
/* In GNU or ANSI mode, gcc leaves `float' expressions as-is. */
typedef float float_t;
typedef double double_t;
/* Signal that types stay as they were declared. */
# define FLT_EVAL_METHOD 0
# define FLT_EVAL_METHOD 0
/* Define `INFINITY' as value of type `float'. */
# define INFINITY HUGE_VALF
# define INFINITY HUGE_VALF
# else
# else
/* For `gcc -traditional', `float' expressions are evaluated as `double'. */
typedef double float_t;
typedef double double_t;
/* Signal that both types are `double'. */
# define FLT_EVAL_METHOD 1
# define FLT_EVAL_METHOD 1
/* Define `INFINITY' as value of type `float'. */
# define INFINITY HUGE_VALF
# define INFINITY HUGE_VALF
# endif
#else
# endif
# else
/* Wild guess at types for float_t and double_t. */
typedef double float_t;
typedef double double_t;
/* Strange compiler, we don't know how it works. */
# define FLT_EVAL_METHOD -1
# define FLT_EVAL_METHOD -1
/* Define `INFINITY' as value of type `float'. */
# define INFINITY HUGE_VALF
# define INFINITY HUGE_VALF
#endif
# endif
/* The values returned by `ilogb' for 0 and NaN respectively. */
#define FP_ILOGB0 0x80000001
#define FP_ILOGBNAN 0x7fffffff
# define FP_ILOGB0 0x80000001
# define FP_ILOGBNAN 0x7fffffff
/* Number of decimal digits for the `double' type. */
#define DECIMAL_DIG 15
# define DECIMAL_DIG 15
#endif /* ISO C 9X */
#ifndef __NO_LONG_DOUBLE_MATH
/* 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
#endif

4
sysdeps/m68k/fpu/bits/mathdef.h
View File

@ -16,11 +16,11 @@
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#ifndef _MATH_H
#if !defined _MATH_H && !defined _COMPLEX_H
# error "Never use <bits/mathdef.h> directly; include <math.h> instead"
#endif
#ifdef __USE_ISOC9X
#if defined __USE_ISOC9X && defined _MATH_H
/* 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
define: */