X-Git-Url: http://nsz.repo.hu/git/?p=musl;a=blobdiff_plain;f=src%2Fmath%2Fexp.c;h=29bf9609906bcd46359c764d082a6f211544125c;hp=c1c9a63c51d4d84110040a73b45bf245d832a1da;hb=9f58d06007818c43b9504e959ef81ab5f113b374;hpb=b69f695acedd4ce2798ef9ea28d834ceccc789bd

diff --git a/src/math/exp.c b/src/math/exp.c
index c1c9a63c..29bf9609 100644
--- a/src/math/exp.c
+++ b/src/math/exp.c
@@ -74,7 +74,6 @@
 #include "libm.h"
 
 static const double
-one     = 1.0,
 halF[2] = {0.5,-0.5,},
 huge    = 1.0e+300,
 o_threshold =  7.09782712893383973096e+02, /* 0x40862E42, 0xFEFA39EF */
@@ -90,7 +89,7 @@ P3   =  6.61375632143793436117e-05, /* 0x3F11566A, 0xAF25DE2C */
 P4   = -1.65339022054652515390e-06, /* 0xBEBBBD41, 0xC5D26BF1 */
 P5   =  4.13813679705723846039e-08; /* 0x3E663769, 0x72BEA4D0 */
 
-static volatile double
+static const volatile double
 twom1000 = 9.33263618503218878990e-302; /* 2**-1000=0x01700000,0 */
 
 double exp(double x)
@@ -134,8 +133,8 @@ double exp(double x)
 		STRICT_ASSIGN(double, x, hi - lo);
 	} else if(hx < 0x3e300000)  {  /* |x| < 2**-28 */
 		/* raise inexact */
-		if (huge+x > one)
-			return one+x;
+		if (huge+x > 1.0)
+			return 1.0+x;
 	} else
 		k = 0;
 
@@ -147,8 +146,8 @@ double exp(double x)
 		INSERT_WORDS(twopk, 0x3ff00000+((k+1000)<<20), 0);
 	c  = x - t*(P1+t*(P2+t*(P3+t*(P4+t*P5))));
 	if (k == 0)
-		return one - ((x*c)/(c-2.0) - x);
-	y = one-((lo-(x*c)/(2.0-c))-hi);
+		return 1.0 - ((x*c)/(c-2.0) - x);
+	y = 1.0-((lo-(x*c)/(2.0-c))-hi);
 	if (k < -1021)
 		return y*twopk*twom1000;
 	if (k == 1024)