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authorMatt A. Tobin <email@mattatobin.com>2019-11-15 17:37:54 -0500
committerMatt A. Tobin <email@mattatobin.com>2019-11-15 17:37:54 -0500
commit556349010e01d0a3b7896f858d503781ea837b46 (patch)
treef003183732dc3cda4ad880407880da282ca4b0c5 /modules/fdlibm/src/e_acos.cpp
parentf3d462c6049bd2f35571c2a0e2a7c4df4f3ca81c (diff)
parent3492ad65236209e741ca3641789efeaa22a6b8a4 (diff)
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Merge branch 'master' into mailnews-work
Diffstat (limited to 'modules/fdlibm/src/e_acos.cpp')
-rw-r--r--modules/fdlibm/src/e_acos.cpp5
1 files changed, 3 insertions, 2 deletions
diff --git a/modules/fdlibm/src/e_acos.cpp b/modules/fdlibm/src/e_acos.cpp
index 12be296cb..4f497b3b3 100644
--- a/modules/fdlibm/src/e_acos.cpp
+++ b/modules/fdlibm/src/e_acos.cpp
@@ -38,6 +38,7 @@
* Function needed: sqrt
*/
+#include <cmath>
#include <float.h>
#include "math_private.h"
@@ -87,13 +88,13 @@ __ieee754_acos(double x)
z = (one+x)*0.5;
p = z*(pS0+z*(pS1+z*(pS2+z*(pS3+z*(pS4+z*pS5)))));
q = one+z*(qS1+z*(qS2+z*(qS3+z*qS4)));
- s = sqrt(z);
+ s = std::sqrt(z);
r = p/q;
w = r*s-pio2_lo;
return pi - 2.0*(s+w);
} else { /* x > 0.5 */
z = (one-x)*0.5;
- s = sqrt(z);
+ s = std::sqrt(z);
df = s;
SET_LOW_WORD(df,0);
c = (z-df*df)/(s+df);