add significand[fl] math functions

[musl] / include / math.h

diff --git a/include/math.h b/include/math.h
index ff62cb7..656f786 100644 (file)
--- a/include/math.h
+++ b/include/math.h
@@ -25,11 +25,11 @@ extern "C" {
 #define HUGE_VALL ((long double)INFINITY)
 
 #define MATH_ERRNO  1
-#define MATH_EXCEPT 2
+#define MATH_ERREXCEPT 2
 #define math_errhandling 2
 
-#define FP_ILOGBNAN (((unsigned)-1)>>1)
-#define FP_ILOGB0 (~FP_ILOGBNAN)
+#define FP_ILOGBNAN (-1-(int)(((unsigned)-1)>>1))
+#define FP_ILOGB0 FP_ILOGBNAN
 
 #define FP_NAN       0
 #define FP_INFINITE  1
@@ -199,8 +199,8 @@ float       fmodf(float, float);
 long double fmodl(long double, long double);
 
 double      frexp(double, int *);
-float       frexpf(float value, int *);
-long double frexpl(long double value, int *);
+float       frexpf(float, int *);
+long double frexpl(long double, int *);
 
 double      hypot(double, double);
 float       hypotf(float, float);
@@ -330,8 +330,7 @@ double      trunc(double);
 float       truncf(float);
 long double truncl(long double);
 
-#if defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE)
-#define MAXFLOAT        3.40282347e+38F
+#if defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
 #define M_E             2.7182818284590452354   /* e */
 #define M_LOG2E         1.4426950408889634074   /* log_2 e */
 #define M_LOG10E        0.43429448190325182765  /* log_10 e */
@@ -345,7 +344,13 @@ long double truncl(long double);
 #define M_2_SQRTPI      1.12837916709551257390  /* 2/sqrt(pi) */
 #define M_SQRT2         1.41421356237309504880  /* sqrt(2) */
 #define M_SQRT1_2       0.70710678118654752440  /* 1/sqrt(2) */
+#endif
 
+#if defined(_XOPEN_SOURCE)
+#define MAXFLOAT        3.40282347e+38F
+#endif
+
+#if defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE)
 extern int signgam;
 
 double      j0(double);
@@ -358,6 +363,7 @@ double      yn(int, double);
 #endif
 
 #ifdef _GNU_SOURCE
+#define HUGE        3.40282347e+38F
 double      scalb(double, double);
 float       scalbf(float, float);
 long double scalbl(long double, long double);
@@ -387,6 +393,17 @@ float       y1f(float);
 long double y1l(long double);
 float       ynf(int, float);
 long double ynl(int, long double);
+
+double      exp10(double);
+float       exp10f(float);
+long double exp10l(long double);
+double      pow10(double);
+float       pow10f(float);
+long double pow10l(long double);
+
+double      significand(double);
+float       significandf(float);
+long double significandl(long double);
 #endif
 
 #ifdef __cplusplus