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authorRich Felker <dalias@aerifal.cx>2012-05-22 21:52:08 -0400
committerRich Felker <dalias@aerifal.cx>2012-05-22 21:52:08 -0400
commit419ae6d5c95629d3ebaff6f1880d52cb027ba924 (patch)
tree9e38522b2d54cdaa3c282f3effb3daac06509edc /include/math.h
parent7b5467cbae266d9cf91404a13c9b6b6e1d9b8204 (diff)
downloadmusl-419ae6d5c95629d3ebaff6f1880d52cb027ba924.tar.gz
support _BSD_SOURCE feature test macro
patch by Isaac Dunham. matched closely (maybe not exact) to glibc's idea of what _BSD_SOURCE should make visible.
Diffstat (limited to 'include/math.h')
-rw-r--r--include/math.h10
1 files changed, 8 insertions, 2 deletions
diff --git a/include/math.h b/include/math.h
index 61738e6a..d7326483 100644
--- a/include/math.h
+++ b/include/math.h
@@ -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);