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Merge pull request #178 from JuliaLang/aa/upstream

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msun: signed overflow in atan2
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Viral B. Shah 2018-06-18 15:55:46 -04:00 committed by GitHub
commit 4b4b41c941
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src/e_atan2.c
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@ -71,7 +71,7 @@ __ieee754_atan2(double y, double x)
if(((ix|((lx|-lx)>>31))>0x7ff00000)|| if(((ix|((lx|-lx)>>31))>0x7ff00000)||
((iy|((ly|-ly)>>31))>0x7ff00000)) /* x or y is NaN */ ((iy|((ly|-ly)>>31))>0x7ff00000)) /* x or y is NaN */
return x+y; return x+y;
if(((hx-0x3ff00000)|lx)==0) return atan(y); /* x=1.0 */ if(hx==0x3ff00000&&lx==0) return atan(y); /* x=1.0 */
m = ((hy>>31)&1)|((hx>>30)&2); /* 2*sign(x)+sign(y) */ m = ((hy>>31)&1)|((hx>>30)&2); /* 2*sign(x)+sign(y) */
/* when y = 0 */ /* when y = 0 */