- add long double signbit

- make long double versions weak aliases to double versions,
on archs where long doubles are 64 bits
- no need to have two finites.  finite() and finitef() are
non-standard 3BSD obsolete versions of isfinite.  remove
from libm.  make them weak_alias in libc to __isfinite and
__isfinitef instead.  similarly make 3BSD obsolete versions
of isinf, isinff, isnan, isnanf weak_aliases to C99's
__isinf, __isinff, __isnan, __isnanf
- bump major
ok millert@

6 files changed, 82 insertions, 17 deletions

diff --git a/lib/libc/gen/fpclassify.c b/lib/libc/gen/fpclassify.c
index 10a0904637b..60d21770bfb 100644
--- a/lib/libc/gen/fpclassify.c
+++ b/lib/libc/gen/fpclassify.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: fpclassify.c,v 1.2 2008/09/07 20:36:08 martynas Exp $	*/
+/*	$OpenBSD: fpclassify.c,v 1.3 2008/12/09 19:52:34 martynas Exp $	*/
 /*
  * Copyright (c) 2008 Martynas Venckus <martynas@openbsd.org>
  *
@@ -16,7 +16,9 @@
  */
 
 #include <sys/types.h>
+#include <machine/cdefs.h>
 #include <machine/ieee.h>
+#include <float.h>
 #include <math.h>
 
 int
@@ -62,3 +64,9 @@ __fpclassifyf(float f)
 
 	return FP_NORMAL;
 }
+
+#if LDBL_MANT_DIG == 53
+#ifdef __weak_alias
+__weak_alias(__fpclassifyl, __fpclassify);
+#endif /* __weak_alias */
+#endif /* LDBL_MANT_DIG == 53 */
diff --git a/lib/libc/gen/isfinite.c b/lib/libc/gen/isfinite.c
index 0e0e8844492..537eed7716a 100644
--- a/lib/libc/gen/isfinite.c
+++ b/lib/libc/gen/isfinite.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: isfinite.c,v 1.2 2008/09/07 20:36:08 martynas Exp $	*/
+/*	$OpenBSD: isfinite.c,v 1.3 2008/12/09 19:52:34 martynas Exp $	*/
 /*
  * Copyright (c) 2008 Martynas Venckus <martynas@openbsd.org>
  *
@@ -16,7 +16,10 @@
  */
 
 #include <sys/types.h>
+#include <machine/cdefs.h>
 #include <machine/ieee.h>
+#include <float.h>
+#include <math.h>
 
 int
 __isfinite(double d)
@@ -33,3 +36,17 @@ __isfinitef(float f)
 
 	return (p->sng_exp != SNG_EXP_INFNAN);
 }
+
+#if LDBL_MANT_DIG == 53
+#ifdef __weak_alias
+__weak_alias(__isfinitel, __isfinite);
+#endif /* __weak_alias */
+#endif /* LDBL_MANT_DIG == 53 */
+
+/* 
+ * 3BSD compatibility aliases.
+ */
+#ifdef __weak_alias
+__weak_alias(finite, __isfinite);
+__weak_alias(finitef, __isfinitef);
+#endif /* __weak_alias */
diff --git a/lib/libc/gen/isinf.c b/lib/libc/gen/isinf.c
index 9af1ca9657b..a7b991b1c7f 100644
--- a/lib/libc/gen/isinf.c
+++ b/lib/libc/gen/isinf.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: isinf.c,v 1.2 2008/09/07 20:36:08 martynas Exp $	*/
+/*	$OpenBSD: isinf.c,v 1.3 2008/12/09 19:52:34 martynas Exp $	*/
 /*
  * Copyright (c) 2008 Martynas Venckus <martynas@openbsd.org>
  *
@@ -16,7 +16,9 @@
  */
 
 #include <sys/types.h>
+#include <machine/cdefs.h>
 #include <machine/ieee.h>
+#include <float.h>
 
 int
 __isinf(double d)
@@ -28,9 +30,23 @@ __isinf(double d)
 }
 
 int
-isinff(float f)
+__isinff(float f)
 {
 	struct ieee_single *p = (struct ieee_single *)&f;
  
 	return (p->sng_exp == SNG_EXP_INFNAN && p->sng_frac == 0);
 }
+
+#if LDBL_MANT_DIG == 53
+#ifdef __weak_alias
+__weak_alias(__isinfl, __isinf);
+#endif /* __weak_alias */
+#endif /* LDBL_MANT_DIG == 53 */
+
+/*
+ * 3BSD compatibility aliases.
+ */
+#ifdef __weak_alias
+__weak_alias(isinf, __isinf);
+__weak_alias(isinff, __isinff);
+#endif /* __weak_alias */
diff --git a/lib/libc/gen/isnan.c b/lib/libc/gen/isnan.c
index 116360369ed..eadb1f18a5e 100644
--- a/lib/libc/gen/isnan.c
+++ b/lib/libc/gen/isnan.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: isnan.c,v 1.2 2008/09/07 20:36:08 martynas Exp $	*/
+/*	$OpenBSD: isnan.c,v 1.3 2008/12/09 19:52:34 martynas Exp $	*/
 /*
  * Copyright (c) 2008 Martynas Venckus <martynas@openbsd.org>
  *
@@ -16,7 +16,9 @@
  */
 
 #include <sys/types.h>
+#include <machine/cdefs.h>
 #include <machine/ieee.h>
+#include <float.h>
 
 int
 __isnan(double d)
@@ -28,9 +30,23 @@ __isnan(double d)
 }
 
 int
-isnanf(float f)
+__isnanf(float f)
 {
 	struct ieee_single *p = (struct ieee_single *)&f;
  
 	return (p->sng_exp == SNG_EXP_INFNAN && p->sng_frac != 0);
 }
+
+#if LDBL_MANT_DIG == 53
+#ifdef __weak_alias
+__weak_alias(__isnanl, __isnan);
+#endif /* __weak_alias */
+#endif /* LDBL_MANT_DIG == 53 */
+
+/*
+ * 3BSD compatibility aliases.
+ */
+#ifdef __weak_alias
+__weak_alias(isnan, __isnan);
+__weak_alias(isnanf, __isnanf);
+#endif /* __weak_alias */
diff --git a/lib/libc/gen/isnormal.c b/lib/libc/gen/isnormal.c
index 8879218e7fe..40e59913a02 100644
--- a/lib/libc/gen/isnormal.c
+++ b/lib/libc/gen/isnormal.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: isnormal.c,v 1.2 2008/09/07 20:36:08 martynas Exp $	*/
+/*	$OpenBSD: isnormal.c,v 1.3 2008/12/09 19:52:34 martynas Exp $	*/
 /*
  * Copyright (c) 2008 Martynas Venckus <martynas@openbsd.org>
  *
@@ -16,7 +16,10 @@
  */
 
 #include <sys/types.h>
+#include <machine/cdefs.h>
 #include <machine/ieee.h>
+#include <float.h>
+#include <math.h>
 
 int
 __isnormal(double d)
@@ -33,3 +36,9 @@ __isnormalf(float f)
 
 	return (p->sng_exp != 0 && p->sng_exp != SNG_EXP_INFNAN);
 }
+
+#if LDBL_MANT_DIG == 53
+#ifdef __weak_alias
+__weak_alias(__isnormall, __isnormal);
+#endif /* __weak_alias */
+#endif /* LDBL_MANT_DIG == 53 */
diff --git a/lib/libc/gen/signbit.c b/lib/libc/gen/signbit.c
index 426362c8288..b4a3f3617e1 100644
--- a/lib/libc/gen/signbit.c
+++ b/lib/libc/gen/signbit.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: signbit.c,v 1.1 2008/07/24 09:31:07 martynas Exp $	*/
+/*	$OpenBSD: signbit.c,v 1.2 2008/12/09 19:52:34 martynas Exp $	*/
 /*
  * Copyright (c) 2008 Martynas Venckus <martynas@openbsd.org>
  *
@@ -16,7 +16,10 @@
  */
 
 #include <sys/types.h>
+#include <machine/cdefs.h>
 #include <machine/ieee.h>
+#include <float.h>
+#include <math.h>
 
 int
 __signbit(double d)
@@ -34,12 +37,8 @@ __signbitf(float f)
 	return p->sng_sign;
 }
 
-#if 0	/* XXX */
-int
-__signbitl(long double e)
-{
-	struct ieee_ext *p = (struct ieee_ext *)&e;
-
-	return p->ext_sign;
-}
-#endif	/* XXX */
+#if LDBL_MANT_DIG == 53
+#ifdef __weak_alias
+__weak_alias(__signbitl, __signbit);
+#endif /* __weak_alias */
+#endif /* LDBL_MANT_DIG == 53 */