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authorGravatar Denys Vlasenko <vda.linux@googlemail.com>2010-10-31 03:03:38 +0100
committerGravatar Denys Vlasenko <vda.linux@googlemail.com>2010-10-31 03:03:38 +0100
commit7e308604ee0aa67bc37f37d6f69ed41481c427a0 (patch)
tree668d9324ac7c3a943cf76ef62ea97951dd2e4298 /include
parent195931714a882765af150167115dcc9077da2213 (diff)
downloaduClibc-7e308604ee0aa67bc37f37d6f69ed41481c427a0.tar.gz
uClibc-7e308604ee0aa67bc37f37d6f69ed41481c427a0.tar.bz2
libm: improve readability of math.h; expand comments and docs
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'include')
-rw-r--r--include/complex.h10
-rw-r--r--include/math.h52
2 files changed, 30 insertions, 32 deletions
diff --git a/include/complex.h b/include/complex.h
index 94fb6ea44..8779bbcd0 100644
--- a/include/complex.h
+++ b/include/complex.h
@@ -54,13 +54,13 @@ __BEGIN_DECLS
so we can easily declare each function as both `name' and `__name',
and can declare the float versions `namef' and `__namef'. */
-#define __MATHCALL(function, args) \
- __MATHDECL (_Mdouble_complex_,function, args)
+#define __MATHCALL(function, args) \
+ __MATHDECL(_Mdouble_complex_,function, args)
#define __MATHDECL(type, function, args) \
- __MATHDECL_1(type, function, args); \
- __MATHDECL_1(type, __CONCAT(__,function), args)
+ __MATHDECL_1(type, function, args); \
+ __MATHDECL_1(type, __CONCAT(__,function), args)
#define __MATHDECL_1(type, function, args) \
- extern type __MATH_PRECNAME(function) args __THROW
+ extern type __MATH_PRECNAME(function) args __THROW
#define _Mdouble_ double
#define __MATH_PRECNAME(name) name
diff --git a/include/math.h b/include/math.h
index 91ebd64bb..d3f86f9c1 100644
--- a/include/math.h
+++ b/include/math.h
@@ -53,40 +53,40 @@ __BEGIN_DECLS
and can declare the float versions `namef' and `__namef'. */
#define __MATHDECL_1(type,function,suffix,args) \
- extern type __MATH_PRECNAME(function,suffix) args __THROW
+ extern type __MATH_PRECNAME(function,suffix) args __THROW
#define __MATHDECL(type,function,suffix,args) \
- __MATHDECL_1(type,function,suffix,args);
+ __MATHDECL_1(type,function,suffix,args);
-#define __MATHCALL(function,suffix,args) \
- __MATHDECL(_Mdouble_,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)
+ __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)
+#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)
+ __MATHDECL_1(type,function,suffix,args); \
+ __MATH_maybe_libm_hidden_proto(function)
-#define __MATHCALLI(function,suffix,args) \
- __MATHDECLI(_Mdouble_,function,suffix,args)
+#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))
+ __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);
+ __MATHDECL_1(type,__CONCAT(__,function),suffix,args) __attribute__ (attrib);
#endif
@@ -139,17 +139,15 @@ __BEGIN_DECLS
# ifdef __LDBL_COMPAT
# ifdef __USE_ISOC99
-extern float __nldbl_nexttowardf (float __x, long double __y)
- __THROW __attribute__ ((__const__));
+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
@@ -158,9 +156,9 @@ extern long double __REDIRECT_NTH (nexttowardl,
# undef __MATHDECL_1
# define __MATHDECL_2(type,function,suffix,args,alias) \
- extern type __REDIRECT_NTH(__MATH_PRECNAME(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))
+ __MATHDECL_2(type,function,suffix,args,__CONCAT(function,suffix))
# endif
# define __MATH_maybe_libm_hidden_proto(x)