X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=src%2Fmath%2Fexp10l.c;h=b758ebffe1dac7332d4ce874acc49abbc5870a1a;hb=6476b8135760659b25c93ff9308425ca98a9e777;hp=22a4636af46300baa76fbedae57118da8e10816f;hpb=8bb181622222f2ee3462c8b021bcae4fcdbbd37a;p=musl

diff --git a/src/math/exp10l.c b/src/math/exp10l.c
index 22a4636a..b758ebff 100644
--- a/src/math/exp10l.c
+++ b/src/math/exp10l.c
@@ -1,7 +1,15 @@
 #define _GNU_SOURCE
+#include <float.h>
 #include <math.h>
 #include "libc.h"
+#include "libm.h"
 
+#if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024
+long double exp10l(long double x)
+{
+	return exp10(x);
+}
+#elif (LDBL_MANT_DIG == 64 || LDBL_MANT_DIG == 113) && LDBL_MAX_EXP == 16384
 long double exp10l(long double x)
 {
 	static const long double p10[] = {
@@ -11,12 +19,15 @@ long double exp10l(long double x)
 		1e10, 1e11, 1e12, 1e13, 1e14, 1e15
 	};
 	long double n, y = modfl(x, &n);
-	if (fabsl(n) < 16) {
+	union ldshape u = {n};
+	/* fabsl(n) < 16 without raising invalid on nan */
+	if ((u.i.se & 0x7fff) < 0x3fff+4) {
 		if (!y) return p10[(int)n+15];
 		y = exp2l(3.32192809488736234787031942948939L * y);
 		return y * p10[(int)n+15];
 	}
 	return powl(10.0, x);
 }
+#endif
 
 weak_alias(exp10l, pow10l);