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authorJoseph Myers <joseph@codesourcery.com>2015-10-28 21:42:52 +0000
committerJoseph Myers <joseph@codesourcery.com>2015-10-28 21:42:52 +0000
commit1f4dafa3ea24df63a6550dbdbbe8769caa7a9fc3 (patch)
tree70f341e615048fa98c3cc33efa340dcc2143b65f /sysdeps/ieee754/ldbl-96
parenta62719ba90e2fa1728890ae7dc8df9e32a622e7b (diff)
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Use C11 *_TRUE_MIN macros where applicable.
C11 defines standard <float.h> macros *_TRUE_MIN for the least
positive subnormal value of a type.  Now that we build with
-std=gnu11, we can use these macros in glibc.  This patch replaces
previous uses of the GCC predefines __*_DENORM_MIN__ (used in
<float.h> to define *_TRUE_MIN), as well as *_DENORM_MIN references in
comments.

Tested for x86_64 and x86 (testsuite, and that installed shared
libraries are unchanged by the patch).  Also tested for powerpc that
installed stripped shared libraries are unchanged by the patch.

	* math/libm-test.inc (min_subnorm_value): Use LDBL_TRUE_MIN,
	DBL_TRUE_MIN and FLT_TRUE_MIN instead of __LDBL_DENORM_MIN__,
	__DBL_DENORM_MIN__ and __FLT_DENORM_MIN__.
	* sysdeps/ieee754/dbl-64/s_fma.c (__fma): Refer to DBL_TRUE_MIN
	instead of DBL_DENORM_MIN in comment.
	* sysdeps/ieee754/ldbl-128/s_fmal.c (__fmal): Refer to
	LDBL_TRUE_MIN instead of LDBL_DENORM_MIN in comment.
	* sysdeps/ieee754/ldbl-128ibm/s_nextafterl.c: Include <float.h>.
	(__nextafterl): Use LDBL_TRUE_MIN instead of __LDBL_DENORM_MIN__.
	* sysdeps/ieee754/ldbl-96/s_fmal.c (__fmal): Refer to
	LDBL_TRUE_MIN instead of LDBL_DENORM_MIN in comment.
Diffstat (limited to 'sysdeps/ieee754/ldbl-96')
-rw-r--r--sysdeps/ieee754/ldbl-96/s_fmal.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/sysdeps/ieee754/ldbl-96/s_fmal.c b/sysdeps/ieee754/ldbl-96/s_fmal.c
index d11885e881..1a0d83b8d0 100644
--- a/sysdeps/ieee754/ldbl-96/s_fmal.c
+++ b/sysdeps/ieee754/ldbl-96/s_fmal.c
@@ -68,7 +68,7 @@ __fmal (long double x, long double y, long double z)
       if (u.ieee.exponent + v.ieee.exponent
 	  > 0x7fff + IEEE854_LONG_DOUBLE_BIAS)
 	return x * y;
-      /* If x * y is less than 1/4 of LDBL_DENORM_MIN, neither the
+      /* If x * y is less than 1/4 of LDBL_TRUE_MIN, neither the
 	 result nor whether there is underflow depends on its exact
 	 value, only on its sign.  */
       if (u.ieee.exponent + v.ieee.exponent