simplify some logic in scanf and remove redundant invalid-format check

[musl] / include / math.h

diff --git a/include/math.h b/include/math.h
index b44738d..0142815 100644 (file)
--- a/include/math.h
+++ b/include/math.h
@@ -43,11 +43,16 @@ int __fpclassify(double);
 int __fpclassifyf(float);
 int __fpclassifyl(long double);
 
-union __float_repr { float __f; __uint32_t __i; };
-union __double_repr { double __f; __uint64_t __i; };
-
-#define __FLOAT_BITS(f) (((union __float_repr){ (float)(f) }).__i)
-#define __DOUBLE_BITS(f) (((union __double_repr){ (double)(f) }).__i)
+static __inline __uint32_t __FLOAT_BITS(float __f)
+{
+       union {float __f; __uint32_t __i;} __u = {__f};
+       return __u.__i;
+}
+static __inline __uint64_t __DOUBLE_BITS(double __f)
+{
+       union {double __f; __uint64_t __i;} __u = {__f};
+       return __u.__i;
+}
 
 #define fpclassify(x) ( \
        sizeof(x) == sizeof(float) ? __fpclassifyf(x) : \
@@ -346,6 +351,7 @@ long double truncl(long double);
 
 
 #if defined(_XOPEN_SOURCE) || defined(_BSD_SOURCE)
+#undef  MAXFLOAT
 #define MAXFLOAT        3.40282347e+38F
 #endif
 
@@ -399,14 +405,6 @@ float       ynf(int, float);
 #ifdef _GNU_SOURCE
 long double lgammal_r(long double, int*);
 
-long double j0l(long double);
-long double j1l(long double);
-long double jnl(int, long double);
-
-long double y0l(long double);
-long double y1l(long double);
-long double ynl(int, long double);
-
 void        sincos(double, double*, double*);
 void        sincosf(float, float*, float*);
 void        sincosl(long double, long double*, long double*);