Update.

	* sysdeps/generic/e_scalb.c: Set invalid exception for invalid
	parameters.
	* sysdeps/generic/e_scalbf.c: New file.
	* sysdeps/generic/e_scalbl.c: New file.

diff --git a/ChangeLog b/ChangeLog
index 5c3212c..47e5e83 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,10 @@
 2001-02-19  Ulrich Drepper  <drepper@redhat.com>
 
+       * sysdeps/generic/e_scalb.c: Set invalid exception for invalid
+       parameters.
+       * sysdeps/generic/e_scalbf.c: New file.
+       * sysdeps/generic/e_scalbl.c: New file.
+
        * sysdeps/ia64/fpu/Makefile (libm-sysdep-routines): Add libm_error,
        libm_frexp4, libm_frexp4f, libm_frexp4l, and all the functions also
        in libc.

diff --git a/sysdeps/generic/e_scalb.c b/sysdeps/generic/e_scalb.c
index d9a326b..2e40943 100644 (file)
--- a/sysdeps/generic/e_scalb.c
+++ b/sysdeps/generic/e_scalb.c
@@ -5,7 +5,7 @@
  *
  * Developed at SunPro, a Sun Microsystems, Inc. business.
  * Permission to use, copy, modify, and distribute this
- * software is freely granted, provided that this notice 
+ * software is freely granted, provided that this notice
  * is preserved.
  * ====================================================
  */
@@ -16,10 +16,11 @@ static char rcsid[] = "$NetBSD: e_scalb.c,v 1.6 1995/05/10 20:46:09 jtc Exp $";
 
 /*
  * __ieee754_scalb(x, fn) is provide for
- * passing various standard test suite. One 
+ * passing various standard test suite. One
  * should use scalbn() instead.
  */
 
+#include <fenv.h>
 #include "math.h"
 #include "math_private.h"
 
@@ -48,10 +49,17 @@ static char rcsid[] = "$NetBSD: e_scalb.c,v 1.6 1995/05/10 20:46:09 jtc Exp $";
            else if (x == 0)
              return x;
            else if (!__finite (x))
-             return __nan ("");
+             {
+               feraiseexcept (FE_INVALID);
+               return __nan ("");
+             }
            else       return x/(-fn);
        }
-       if (__rint(fn)!=fn) return __nan ("");
+       if (__rint(fn)!=fn)
+         {
+           feraiseexcept (FE_INVALID);
+           return __nan ("");
+         }
        if ( fn > 65000.0) return __scalbn(x, 65000);
        if (-fn > 65000.0) return __scalbn(x,-65000);
        return __scalbn(x,(int)fn);

diff --git a/sysdeps/generic/e_scalbf.c b/sysdeps/generic/e_scalbf.c
index f51057e..9d769f4 100644 (file)
--- a/sysdeps/generic/e_scalbf.c
+++ b/sysdeps/generic/e_scalbf.c
@@ -8,7 +8,7 @@
  *
  * Developed at SunPro, a Sun Microsystems, Inc. business.
  * Permission to use, copy, modify, and distribute this
- * software is freely granted, provided that this notice 
+ * software is freely granted, provided that this notice
  * is preserved.
  * ====================================================
  */
@@ -17,6 +17,7 @@
 static char rcsid[] = "$NetBSD: e_scalbf.c,v 1.3 1995/05/10 20:46:12 jtc Exp $";
 #endif
 
+#include <fenv.h>
 #include "math.h"
 #include "math_private.h"
 
@@ -45,10 +46,17 @@ static char rcsid[] = "$NetBSD: e_scalbf.c,v 1.3 1995/05/10 20:46:12 jtc Exp $";
            else if (x == 0)
              return x;
            else if (!__finitef (x))
-             return __nanf ("");
+             {
+               feraiseexcept (FE_INVALID);
+               return __nanf ("");
+             }
            else       return x/(-fn);
        }
-       if (__rintf(fn)!=fn) return __nanf ("");
+       if (__rintf(fn)!=fn)
+         {
+           feraiseexcept (FE_INVALID);
+           return __nanf ("");
+         }
        if ( fn > (float)65000.0) return __scalbnf(x, 65000);
        if (-fn > (float)65000.0) return __scalbnf(x,-65000);
        return __scalbnf(x,(int)fn);

diff --git a/sysdeps/generic/e_scalbl.c b/sysdeps/generic/e_scalbl.c
index dccc876..fb2914d 100644 (file)
--- a/sysdeps/generic/e_scalbl.c
+++ b/sysdeps/generic/e_scalbl.c
@@ -24,6 +24,7 @@ static char rcsid[] = "$NetBSD: $";
  * should use scalbnl() instead.
  */
 
+#include <fenv.h>
 #include "math.h"
 #include "math_private.h"
 
@@ -52,10 +53,17 @@ static char rcsid[] = "$NetBSD: $";
            else if (x == 0)
              return x;
            else if (!__finitel (x))
-             return __nanl ("");
+             {
+               feraiseexcept (FE_INVALID);
+               return __nanl ("");
+             }
            else       return x/(-fn);
        }
-       if (__rintl(fn)!=fn) return __nanl ("");
+       if (__rintl(fn)!=fn)
+         {
+           feraiseexcept (FE_INVALID);
+           return __nanl ("");
+         }
        if ( fn > 65000.0) return __scalbnl(x, 65000);
        if (-fn > 65000.0) return __scalbnl(x,-65000);
        return __scalbnl(x,(int)fn);