Replace math.h with cmath

src/assembler.cc

Index: src/assembler.cc
diff --git a/src/assembler.cc b/src/assembler.cc
index 5bde8c5383ee67551dcb4fc4d1ca59785e7e9bd6..84d720b248e7efc2e7492881a2be8f6cc43046c9 100644
--- a/src/assembler.cc
+++ b/src/assembler.cc
@@ -34,7 +34,7 @@
 
 #include "assembler.h"
 
-#include <math.h>  // For cos, log, pow, sin, tan, etc.
+#include <cmath>
 #include "api.h"
 #include "builtins.h"
 #include "counters.h"
@@ -1459,10 +1459,11 @@ double power_helper(double x, double y) {
     return power_double_int(x, y_int);  // Returns 1 if exponent is 0.
   }
   if (y == 0.5) {
-    return (isinf(x)) ? V8_INFINITY : fast_sqrt(x + 0.0);  // Convert -0 to +0.
+    return (std::isinf(x)) ? V8_INFINITY
+                           : fast_sqrt(x + 0.0);  // Convert -0 to +0.
   }
   if (y == -0.5) {
-    return (isinf(x)) ? 0 : 1.0 / fast_sqrt(x + 0.0);  // Convert -0 to +0.
+    return (std::isinf(x)) ? 0 : 1.0 / fast_sqrt(x + 0.0);  // Convert -0 to +0.
   }
   return power_double_double(x, y);
 }
@@ -1492,7 +1493,7 @@ double power_double_double(double x, double y) {
     (!defined(__MINGW64_VERSION_RC) || __MINGW64_VERSION_RC < 1)
   // MinGW64 has a custom implementation for pow.  This handles certain
   // special cases that are different.
-  if ((x == 0.0 || isinf(x)) && isfinite(y)) {
+  if ((x == 0.0 || std::isinf(x)) && std::isfinite(y)) {
     double f;
     if (modf(y, &f) != 0.0) return ((x == 0.0) ^ (y > 0)) ? V8_INFINITY : 0;
   }
@@ -1505,7 +1506,9 @@ double power_double_double(double x, double y) {
 
   // The checks for special cases can be dropped in ia32 because it has already
   // been done in generated code before bailing out here.
-  if (isnan(y) || ((x == 1 || x == -1) && isinf(y))) return OS::nan_value();
+  if (std::isnan(y) || ((x == 1 || x == -1) && std::isinf(y))) {
+    return OS::nan_value();
+  }
   return pow(x, y);
 }