* gcc.dg/const-elim-1.c: Remove xfail for xtensa-*-*.

[pf3gnuchains/gcc-fork.git] / libgfortran / intrinsics / c99_functions.c

diff --git a/libgfortran/intrinsics/c99_functions.c b/libgfortran/intrinsics/c99_functions.c
index 8198e00..f7dc977 100644 (file)
--- a/libgfortran/intrinsics/c99_functions.c
+++ b/libgfortran/intrinsics/c99_functions.c
@@ -4,17 +4,26 @@
 This file is part of the GNU Fortran 95 runtime library (libgfortran).
 
 Libgfortran is free software; you can redistribute it and/or
-modify it under the terms of the GNU Lesser General Public
+modify it under the terms of the GNU General Public
 License as published by the Free Software Foundation; either
-version 2.1 of the License, or (at your option) any later version.
+version 2 of the License, or (at your option) any later version.
+
+In addition to the permissions in the GNU General Public License, the
+Free Software Foundation gives you unlimited permission to link the
+compiled version of this file into combinations with other programs,
+and to distribute those combinations without any restriction coming
+from the use of this file.  (The General Public License restrictions
+do apply in other respects; for example, they cover modification of
+the file, and distribution when not linked into a combine
+executable.)
 
 Libgfortran is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU Lesser General Public License for more details.
+GNU General Public License for more details.
 
-You should have received a copy of the GNU Lesser General Public
-License along with libgfortran; see the file COPYING.LIB.  If not,
+You should have received a copy of the GNU General Public
+License along with libgfortran; see the file COPYING.  If not,
 write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 Boston, MA 02111-1307, USA.  */
 
@@ -97,6 +106,14 @@ expf(float x)
 }
 #endif
 
+#ifndef HAVE_FABSF
+float
+fabsf(float x)
+{
+  return (float) fabs(x);
+}
+#endif
+
 #ifndef HAVE_FLOORF
 float
 floorf(float x)
@@ -201,6 +218,8 @@ nextafterf(float x, float y)
     return x + y;
   if (x == y)
     return x;
+  if (!isfinite (x))
+    return x > 0 ? __FLT_MAX__ : - __FLT_MAX__;
 
   /* absx = fabsf (x);  */
   absx = (x < 0.0) ? -x : x;
@@ -254,7 +273,7 @@ powf(float x, float y)
 }
 #endif
 
-/* Note that if HAVE_FPCLASSIFY is not defined, then NaN is not handled */
+/* Note that if fpclassify is not defined, then NaN is not handled */
 
 /* Algorithm by Steven G. Kargl.  */
 
@@ -266,7 +285,7 @@ double
 round(double x)
 {
    double t;
-#ifdef HAVE_FPCLASSIFY
+#if defined(fpclassify)
    int i;
    i = fpclassify(x);
    if (i == FP_INFINITE || i == FP_NAN)
@@ -298,7 +317,7 @@ float
 roundf(float x)
 {
    float t;
-#ifdef HAVE_FPCLASSIFY
+#if defined(fpclassify)
    int i;
 
    i = fpclassify(x);
@@ -322,4 +341,3 @@ roundf(float x)
     }
 }
 #endif
-