modfl-ieee: Work around test failures on IRIX, OSF/1, mingw.

[gnulib.git] / lib / math.in.h

diff --git a/lib/math.in.h b/lib/math.in.h
index eadb489..721ddf5 100644 (file)
--- a/lib/math.in.h
+++ b/lib/math.in.h
@@ -1,6 +1,6 @@
 /* A GNU-like <math.h>.
 
-   Copyright (C) 2002-2003, 2007-2011 Free Software Foundation, Inc.
+   Copyright (C) 2002-2003, 2007-2012 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -163,6 +163,7 @@ _GL_WARN_ON_USE (acosf, "acosf is unportable - "
 
 #if @GNULIB_ACOSL@
 # if !@HAVE_ACOSL@ || !@HAVE_DECL_ACOSL@
+#  undef acosl
 _GL_FUNCDECL_SYS (acosl, long double, (long double x));
 # endif
 _GL_CXXALIAS_SYS (acosl, long double, (long double x));
@@ -193,6 +194,7 @@ _GL_WARN_ON_USE (asinf, "asinf is unportable - "
 
 #if @GNULIB_ASINL@
 # if !@HAVE_ASINL@ || !@HAVE_DECL_ASINL@
+#  undef asinl
 _GL_FUNCDECL_SYS (asinl, long double, (long double x));
 # endif
 _GL_CXXALIAS_SYS (asinl, long double, (long double x));
@@ -223,6 +225,7 @@ _GL_WARN_ON_USE (atanf, "atanf is unportable - "
 
 #if @GNULIB_ATANL@
 # if !@HAVE_ATANL@ || !@HAVE_DECL_ATANL@
+#  undef atanl
 _GL_FUNCDECL_SYS (atanl, long double, (long double x));
 # endif
 _GL_CXXALIAS_SYS (atanl, long double, (long double x));
@@ -262,6 +265,7 @@ _GL_FUNCDECL_RPL (ceilf, float, (float x));
 _GL_CXXALIAS_RPL (ceilf, float, (float x));
 # else
 #  if !@HAVE_DECL_CEILF@
+#   undef ceilf
 _GL_FUNCDECL_SYS (ceilf, float, (float x));
 #  endif
 _GL_CXXALIAS_SYS (ceilf, float, (float x));
@@ -298,6 +302,7 @@ _GL_FUNCDECL_RPL (ceill, long double, (long double x));
 _GL_CXXALIAS_RPL (ceill, long double, (long double x));
 # else
 #  if !@HAVE_DECL_CEILL@
+#   undef ceill
 _GL_FUNCDECL_SYS (ceill, long double, (long double x));
 #  endif
 _GL_CXXALIAS_SYS (ceill, long double, (long double x));
@@ -372,6 +377,7 @@ _GL_WARN_ON_USE (cosf, "cosf is unportable - "
 
 #if @GNULIB_COSL@
 # if !@HAVE_COSL@ || !@HAVE_DECL_COSL@
+#  undef cosl
 _GL_FUNCDECL_SYS (cosl, long double, (long double x));
 # endif
 _GL_CXXALIAS_SYS (cosl, long double, (long double x));
@@ -418,6 +424,7 @@ _GL_WARN_ON_USE (expf, "expf is unportable - "
 
 #if @GNULIB_EXPL@
 # if !@HAVE_EXPL@ || !@HAVE_DECL_EXPL@
+#  undef expl
 _GL_FUNCDECL_SYS (expl, long double, (long double x));
 # endif
 _GL_CXXALIAS_SYS (expl, long double, (long double x));
@@ -446,6 +453,30 @@ _GL_WARN_ON_USE (fabsf, "fabsf is unportable - "
 # endif
 #endif
 
+#if @GNULIB_FABSL@
+# if @REPLACE_FABSL@
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+#   undef fabsl
+#   define fabsl rpl_fabsl
+#  endif
+_GL_FUNCDECL_RPL (fabsl, long double, (long double x));
+_GL_CXXALIAS_RPL (fabsl, long double, (long double x));
+# else
+#  if !@HAVE_FABSL@
+#   undef fabsl
+_GL_FUNCDECL_SYS (fabsl, long double, (long double x));
+#  endif
+_GL_CXXALIAS_SYS (fabsl, long double, (long double x));
+# endif
+_GL_CXXALIASWARN (fabsl);
+#elif defined GNULIB_POSIXCHECK
+# undef fabsl
+# if HAVE_RAW_DECL_FABSL
+_GL_WARN_ON_USE (fabsl, "fabsl is unportable - "
+                 "use gnulib module fabsl for portability");
+# endif
+#endif
+
 
 #if @GNULIB_FLOORF@
 # if @REPLACE_FLOORF@
@@ -457,6 +488,7 @@ _GL_FUNCDECL_RPL (floorf, float, (float x));
 _GL_CXXALIAS_RPL (floorf, float, (float x));
 # else
 #  if !@HAVE_DECL_FLOORF@
+#   undef floorf
 _GL_FUNCDECL_SYS (floorf, float, (float x));
 #  endif
 _GL_CXXALIAS_SYS (floorf, float, (float x));
@@ -493,6 +525,7 @@ _GL_FUNCDECL_RPL (floorl, long double, (long double x));
 _GL_CXXALIAS_RPL (floorl, long double, (long double x));
 # else
 #  if !@HAVE_DECL_FLOORL@
+#   undef floorl
 _GL_FUNCDECL_SYS (floorl, long double, (long double x));
 #  endif
 _GL_CXXALIAS_SYS (floorl, long double, (long double x));
@@ -596,6 +629,30 @@ _GL_WARN_ON_USE (fmodf, "fmodf is unportable - "
 # endif
 #endif
 
+#if @GNULIB_FMODL@
+# if @REPLACE_FMODL@
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+#   undef fmodl
+#   define fmodl rpl_fmodl
+#  endif
+_GL_FUNCDECL_RPL (fmodl, long double, (long double x, long double y));
+_GL_CXXALIAS_RPL (fmodl, long double, (long double x, long double y));
+# else
+#  if !@HAVE_FMODL@
+#   undef fmodl
+_GL_FUNCDECL_SYS (fmodl, long double, (long double x, long double y));
+#  endif
+_GL_CXXALIAS_SYS (fmodl, long double, (long double x, long double y));
+# endif
+_GL_CXXALIASWARN (fmodl);
+#elif defined GNULIB_POSIXCHECK
+# undef fmodl
+# if HAVE_RAW_DECL_FMODL
+_GL_WARN_ON_USE (fmodl, "fmodl is unportable - "
+                 "use gnulib module fmodl for portability");
+# endif
+#endif
+
 
 /* Write x as
      x = mantissa * 2^exp
@@ -763,6 +820,7 @@ _GL_WARN_ON_USE (logf, "logf is unportable - "
 
 #if @GNULIB_LOGL@
 # if !@HAVE_LOGL@ || !@HAVE_DECL_LOGL@
+#  undef logl
 _GL_FUNCDECL_SYS (logl, long double, (long double x));
 # endif
 _GL_CXXALIAS_SYS (logl, long double, (long double x));
@@ -791,13 +849,37 @@ _GL_WARN_ON_USE (log10f, "log10f is unportable - "
 # endif
 #endif
 
+#if @GNULIB_LOG10L@
+# if !@HAVE_LOG10L@ || !@HAVE_DECL_LOG10L@
+#  undef log10l
+_GL_FUNCDECL_SYS (log10l, long double, (long double x));
+# endif
+_GL_CXXALIAS_SYS (log10l, long double, (long double x));
+_GL_CXXALIASWARN (log10l);
+#elif defined GNULIB_POSIXCHECK
+# undef log10l
+# if HAVE_RAW_DECL_LOG10L
+_GL_WARN_ON_USE (log10l, "log10l is unportable - "
+                 "use gnulib module log10l for portability");
+# endif
+#endif
+
 
 #if @GNULIB_MODFF@
-# if !@HAVE_MODFF@
-#  undef modff
+# if @REPLACE_MODFF@
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+#   undef modff
+#   define modff rpl_modff
+#  endif
+_GL_FUNCDECL_RPL (modff, float, (float x, float *iptr) _GL_ARG_NONNULL ((2)));
+_GL_CXXALIAS_RPL (modff, float, (float x, float *iptr));
+# else
+#  if !@HAVE_MODFF@
+#   undef modff
 _GL_FUNCDECL_SYS (modff, float, (float x, float *iptr) _GL_ARG_NONNULL ((2)));
-# endif
+#  endif
 _GL_CXXALIAS_SYS (modff, float, (float x, float *iptr));
+# endif
 _GL_CXXALIASWARN (modff);
 #elif defined GNULIB_POSIXCHECK
 # undef modff
@@ -807,6 +889,52 @@ _GL_WARN_ON_USE (modff, "modff is unportable - "
 # endif
 #endif
 
+#if @GNULIB_MODF@
+# if @REPLACE_MODF@
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+#   undef modf
+#   define modf rpl_modf
+#  endif
+_GL_FUNCDECL_RPL (modf, double, (double x, double *iptr) _GL_ARG_NONNULL ((2)));
+_GL_CXXALIAS_RPL (modf, double, (double x, double *iptr));
+# else
+_GL_CXXALIAS_SYS (modf, double, (double x, double *iptr));
+# endif
+_GL_CXXALIASWARN (modf);
+#elif defined GNULIB_POSIXCHECK
+# undef modf
+# if HAVE_RAW_DECL_MODF
+_GL_WARN_ON_USE (modf, "modf has portability problems - "
+                 "use gnulib module modf for portability");
+# endif
+#endif
+
+#if @GNULIB_MODFL@
+# if @REPLACE_MODFL@
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+#   undef modfl
+#   define modfl rpl_modfl
+#  endif
+_GL_FUNCDECL_RPL (modfl, long double, (long double x, long double *iptr)
+                                      _GL_ARG_NONNULL ((2)));
+_GL_CXXALIAS_RPL (modfl, long double, (long double x, long double *iptr));
+# else
+#  if !@HAVE_MODFL@
+#   undef modfl
+_GL_FUNCDECL_SYS (modfl, long double, (long double x, long double *iptr)
+                                      _GL_ARG_NONNULL ((2)));
+#  endif
+_GL_CXXALIAS_SYS (modfl, long double, (long double x, long double *iptr));
+# endif
+_GL_CXXALIASWARN (modfl);
+#elif defined GNULIB_POSIXCHECK
+# undef modfl
+# if HAVE_RAW_DECL_MODFL
+_GL_WARN_ON_USE (modfl, "modfl is unportable - "
+                 "use gnulib module modfl for portability");
+# endif
+#endif
+
 
 #if @GNULIB_POWF@
 # if !@HAVE_POWF@
@@ -824,6 +952,49 @@ _GL_WARN_ON_USE (powf, "powf is unportable - "
 #endif
 
 
+#if @GNULIB_REMAINDERF@
+# if !@HAVE_REMAINDERF@
+_GL_FUNCDECL_SYS (remainderf, float, (float x, float y));
+# endif
+_GL_CXXALIAS_SYS (remainderf, float, (float x, float y));
+_GL_CXXALIASWARN (remainderf);
+#elif defined GNULIB_POSIXCHECK
+# undef remainderf
+# if HAVE_RAW_DECL_REMAINDERF
+_GL_WARN_ON_USE (remainderf, "remainderf is unportable - "
+                 "use gnulib module remainderf for portability");
+# endif
+#endif
+
+#if @GNULIB_REMAINDER@
+# if !@HAVE_REMAINDER@ || !@HAVE_DECL_REMAINDER@
+_GL_FUNCDECL_SYS (remainder, double, (double x, double y));
+# endif
+_GL_CXXALIAS_SYS (remainder, double, (double x, double y));
+_GL_CXXALIASWARN (remainder);
+#elif defined GNULIB_POSIXCHECK
+# undef remainder
+# if HAVE_RAW_DECL_REMAINDER
+_GL_WARN_ON_USE (remainder, "remainder is unportable - "
+                 "use gnulib module remainder for portability");
+# endif
+#endif
+
+#if @GNULIB_REMAINDERL@
+# if !@HAVE_REMAINDERL@
+_GL_FUNCDECL_SYS (remainderl, long double, (long double x, long double y));
+# endif
+_GL_CXXALIAS_SYS (remainderl, long double, (long double x, long double y));
+_GL_CXXALIASWARN (remainderl);
+#elif defined GNULIB_POSIXCHECK
+# undef remainderl
+# if HAVE_RAW_DECL_REMAINDERL
+_GL_WARN_ON_USE (remainderl, "remainderl is unportable - "
+                 "use gnulib module remainderl for portability");
+# endif
+#endif
+
+
 #if @GNULIB_RINTF@
 # if !@HAVE_RINTF@
 _GL_FUNCDECL_SYS (rintf, float, (float x));
@@ -954,6 +1125,7 @@ _GL_WARN_ON_USE (sinf, "sinf is unportable - "
 
 #if @GNULIB_SINL@
 # if !@HAVE_SINL@ || !@HAVE_DECL_SINL@
+#  undef sinl
 _GL_FUNCDECL_SYS (sinl, long double, (long double x));
 # endif
 _GL_CXXALIAS_SYS (sinl, long double, (long double x));
@@ -1000,6 +1172,7 @@ _GL_WARN_ON_USE (sqrtf, "sqrtf is unportable - "
 
 #if @GNULIB_SQRTL@
 # if !@HAVE_SQRTL@ || !@HAVE_DECL_SQRTL@
+#  undef sqrtl
 _GL_FUNCDECL_SYS (sqrtl, long double, (long double x));
 # endif
 _GL_CXXALIAS_SYS (sqrtl, long double, (long double x));
@@ -1030,6 +1203,7 @@ _GL_WARN_ON_USE (tanf, "tanf is unportable - "
 
 #if @GNULIB_TANL@
 # if !@HAVE_TANL@ || !@HAVE_DECL_TANL@
+#  undef tanl
 _GL_FUNCDECL_SYS (tanl, long double, (long double x));
 # endif
 _GL_CXXALIAS_SYS (tanl, long double, (long double x));
@@ -1246,7 +1420,7 @@ _GL_EXTERN_C int isnand (double x);
 /* Test whether X is a NaN.  */
 #  undef isnanl
 #  define isnanl rpl_isnanl
-_GL_EXTERN_C int isnanl (long double x);
+_GL_EXTERN_C int isnanl (long double x) _GL_ATTRIBUTE_CONST;
 # endif
 #endif
 
@@ -1272,7 +1446,7 @@ _GL_EXTERN_C int rpl_isnand (double x);
 #  if @HAVE_ISNANL@ && __GNUC__ >= 4
 #   define gl_isnan_l(x) __builtin_isnanl ((long double)(x))
 #  else
-_GL_EXTERN_C int rpl_isnanl (long double x);
+_GL_EXTERN_C int rpl_isnanl (long double x) _GL_ATTRIBUTE_CONST;
 #   define gl_isnan_l(x) rpl_isnanl (x)
 #  endif
 #  undef isnan