Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- 02111-1307 USA. */
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
/*
* ISO C99 Standard: 7.12 Mathematics <math.h>
/* Get general and ISO C99 specific information. */
#include <bits/mathdef.h>
+
/* The file <bits/mathcalls.h> contains the prototypes for all the
actual math functions. These macros are used for those prototypes,
so we can easily declare each function as both `name' and `__name',
and can declare the float versions `namef' and `__namef'. */
-#define __MATHCALL(function,suffix, args) \
- __MATHDECL (_Mdouble_,function,suffix, args)
-#define __MATHDECL(type, function,suffix, args) \
- __MATHDECL_1(type, function,suffix, args); \
- __MATHDECL_1(type, __CONCAT(__,function),suffix, args)
-#define __MATHCALLX(function,suffix, args, attrib) \
- __MATHDECLX (_Mdouble_,function,suffix, args, attrib)
-#define __MATHDECLX(type, function,suffix, args, attrib) \
- __MATHDECL_1(type, function,suffix, args) __attribute__ (attrib); \
- __MATHDECL_1(type, __CONCAT(__,function),suffix, args) __attribute__ (attrib)
-#define __MATHDECL_1(type, function,suffix, args) \
- extern type __MATH_PRECNAME(function,suffix) args __THROW
-
-#define _Mdouble_ double
-#define __MATH_PRECNAME(name,r) __CONCAT(name,r)
-# define _Mdouble_BEGIN_NAMESPACE __BEGIN_NAMESPACE_STD
-# define _Mdouble_END_NAMESPACE __END_NAMESPACE_STD
+#define __MATHDECL_1(type,function,suffix,args) \
+ extern type __MATH_PRECNAME(function,suffix) args __THROW
+
+#define __MATHDECL(type,function,suffix,args) \
+ __MATHDECL_1(type,function,suffix,args);
+
+#define __MATHCALL(function,suffix,args) \
+ __MATHDECL(_Mdouble_,function,suffix,args)
+
+#define __MATHDECLX(type,function,suffix,args,attrib) \
+ __MATHDECL_1(type,function,suffix,args) __attribute__ (attrib); \
+ __MATH_maybe_libm_hidden_proto(function)
+
+#define __MATHCALLX(function,suffix,args,attrib) \
+ __MATHDECLX(_Mdouble_,function,suffix,args,attrib)
+
+/* Decls which are also used internally in libm.
+ Only the main variant is used internally, no need to try to avoid relocs
+ for the {l,f} variants. */
+#define __MATHDECLI(type,function,suffix,args) \
+ __MATHDECL_1(type,function,suffix,args); \
+ __MATH_maybe_libm_hidden_proto(function)
+
+#define __MATHCALLI(function,suffix,args) \
+ __MATHDECLI(_Mdouble_,function,suffix,args)
+
+/* Private helpers for purely macro impls below.
+ Only make __foo{,f,l} visible but not (the macro-only) foo. */
+#if defined _LIBC
+# define __MATHDECL_PRIV(type,function,suffix,args,attrib) \
+ __MATHDECL_1(type,__CONCAT(__,function),suffix,args) __attribute__ (attrib); \
+ libm_hidden_proto(__MATH_PRECNAME(__##function,suffix))
+#else
+# define __MATHDECL_PRIV(type,function,suffix,args,attrib) \
+ __MATHDECL_1(type,__CONCAT(__,function),suffix,args) __attribute__ (attrib);
+#endif
+
+
+/* Include the file of declarations, declaring double versions */
+
+#if defined _LIBC
+# define __MATH_maybe_libm_hidden_proto(x) libm_hidden_proto(x)
+#else
+# define __MATH_maybe_libm_hidden_proto(x)
+#endif
+#define _Mdouble_ double
+#define __MATH_PRECNAME(name,r) __CONCAT(name,r)
+#define _Mdouble_BEGIN_NAMESPACE __BEGIN_NAMESPACE_STD
+#define _Mdouble_END_NAMESPACE __END_NAMESPACE_STD
#include <bits/mathcalls.h>
#undef _Mdouble_
#undef _Mdouble_BEGIN_NAMESPACE
#undef _Mdouble_END_NAMESPACE
-#undef __MATH_PRECNAME
+#undef __MATH_PRECNAME
+#undef __MATH_maybe_libm_hidden_proto
-#if defined __USE_MISC || defined __USE_ISOC99
+#if defined __USE_MISC || defined __USE_ISOC99
/* Include the file of declarations again, this time using `float'
instead of `double' and appending f to each function name. */
+# define __MATH_maybe_libm_hidden_proto(x)
# ifndef _Mfloat_
# define _Mfloat_ float
# endif
-# define _Mdouble_ _Mfloat_
+# define _Mdouble_ _Mfloat_
# ifdef __STDC__
# define __MATH_PRECNAME(name,r) name##f##r
# else
# undef _Mdouble_BEGIN_NAMESPACE
# undef _Mdouble_END_NAMESPACE
# undef __MATH_PRECNAME
+# undef __MATH_maybe_libm_hidden_proto
+
-# if (__STDC__ - 0 || __GNUC__ - 0) \
+# if (defined __STDC__ || defined __GNUC__) \
&& (!defined __NO_LONG_DOUBLE_MATH || defined __LDBL_COMPAT)
# ifdef __LDBL_COMPAT
-# ifdef __USE_ISOC99
-extern float __nldbl_nexttowardf (float __x, long double __y)
- __THROW __attribute__ ((__const__));
+# ifdef __USE_ISOC99
+extern float __nldbl_nexttowardf (float __x, long double __y) __THROW
+ __attribute__ ((__const__));
# ifdef __REDIRECT_NTH
-extern float __REDIRECT_NTH (nexttowardf, (float __x, long double __y),
- __nldbl_nexttowardf)
- __attribute__ ((__const__));
-extern double __REDIRECT_NTH (nexttoward, (double __x, long double __y),
- nextafter) __attribute__ ((__const__));
-extern long double __REDIRECT_NTH (nexttowardl,
- (long double __x, long double __y),
- nextafter) __attribute__ ((__const__));
+extern float __REDIRECT_NTH (nexttowardf, (float __x, long double __y), __nldbl_nexttowardf)
+ __attribute__ ((__const__));
+extern double __REDIRECT_NTH (nexttoward, (double __x, long double __y), nextafter)
+ __attribute__ ((__const__));
+extern long double __REDIRECT_NTH (nexttowardl, (long double __x, long double __y), nextafter)
+ __attribute__ ((__const__));
# endif
# endif
instead of `double' and appending l to each function name. */
# undef __MATHDECL_1
-# define __MATHDECL_2(type, function,suffix, args, alias) \
- extern type __REDIRECT_NTH(__MATH_PRECNAME(function,suffix), \
- args, alias)
-# define __MATHDECL_1(type, function,suffix, args) \
- __MATHDECL_2(type, function,suffix, args, __CONCAT(function,suffix))
+# define __MATHDECL_2(type,function,suffix,args,alias) \
+ extern type __REDIRECT_NTH(__MATH_PRECNAME(function,suffix),args,alias)
+# define __MATHDECL_1(type,function,suffix,args) \
+ __MATHDECL_2(type,function,suffix,args,__CONCAT(function,suffix))
# endif
+# define __MATH_maybe_libm_hidden_proto(x)
# ifndef _Mlong_double_
# define _Mlong_double_ long double
# endif
-# define _Mdouble_ _Mlong_double_
+# define _Mdouble_ _Mlong_double_
# ifdef __STDC__
# define __MATH_PRECNAME(name,r) name##l##r
# else
# define _Mdouble_END_NAMESPACE __END_NAMESPACE_C99
# include <bits/mathcalls.h>
# undef _Mdouble_
-# undef _Mdouble_BEGIN_NAMESPACE
-# undef _Mdouble_END_NAMESPACE
+# undef _Mdouble_BEGIN_NAMESPACE
+# undef _Mdouble_END_NAMESPACE
# undef __MATH_PRECNAME
+# undef __MATH_maybe_libm_hidden_proto
# endif /* __STDC__ || __GNUC__ */
#else /* !SVID */
# ifdef __USE_XOPEN
+# ifdef __UCLIBC_SUSV4_LEGACY__
/* X/Open wants another strange constant. */
# define MAXFLOAT 3.40282347e+38F
+# endif
# endif
#endif /* SVID */
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