Replace math.h with cmath

src/runtime.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 47 matching lines @@
 #include "runtime.h"
 #include "scopeinfo.h"
 #include "smart-pointers.h"
 #include "string-search.h"
 #include "stub-cache.h"
 #include "uri.h"
 #include "v8conversions.h"
 #include "v8threads.h"
 #include "vm-state-inl.h"
 
+#ifndef _STLP_VENDOR_CSTD
+// STLPort doesn't import fpclassify and isless into the std namespace.
+using std::fpclassify;
+using std::isless;
+#endif
+
 namespace v8 {
 namespace internal {
 
 
 #define RUNTIME_ASSERT(value) \
   if (!(value)) return isolate->ThrowIllegalOperation();
 
 // Cast the given object to a value of the specified type and store
 // it in a variable with the given name.  If the object is not of the
 // expected type call IllegalOperation and return.
@@ skipping 3878 matching lines @@
     if (value >= 0 && value < radix) {
       // Character array used for conversion.
       static const char kCharTable[] = "0123456789abcdefghijklmnopqrstuvwxyz";
       return isolate->heap()->
           LookupSingleCharacterStringFromCode(kCharTable[value]);
     }
   }
 
   // Slow case.
   CONVERT_DOUBLE_ARG_CHECKED(value, 0);
-  if (isnan(value)) {
+  if (std::isnan(value)) {
     return *isolate->factory()->nan_string();
   }
-  if (isinf(value)) {
+  if (std::isinf(value)) {
     if (value < 0) {
       return *isolate->factory()->minus_infinity_string();
     }
     return *isolate->factory()->infinity_string();
   }
   char* str = DoubleToRadixCString(value, radix);
   MaybeObject* result =
       isolate->heap()->AllocateStringFromOneByte(CStrVector(str));
   DeleteArray(str);
   return result;
@@ skipping 2617 matching lines @@
   return isolate->heap()->NumberFromInt32(ArithmeticShiftRight(x, y & 0x1f));
 }
 
 
 RUNTIME_FUNCTION(MaybeObject*, Runtime_NumberEquals) {
   NoHandleAllocation ha(isolate);
   ASSERT(args.length() == 2);
 
   CONVERT_DOUBLE_ARG_CHECKED(x, 0);
   CONVERT_DOUBLE_ARG_CHECKED(y, 1);
-  if (isnan(x)) return Smi::FromInt(NOT_EQUAL);
-  if (isnan(y)) return Smi::FromInt(NOT_EQUAL);
+  if (std::isnan(x)) return Smi::FromInt(NOT_EQUAL);
+  if (std::isnan(y)) return Smi::FromInt(NOT_EQUAL);
   if (x == y) return Smi::FromInt(EQUAL);
   Object* result;
   if ((fpclassify(x) == FP_ZERO) && (fpclassify(y) == FP_ZERO)) {
     result = Smi::FromInt(EQUAL);
   } else {
     result = Smi::FromInt(NOT_EQUAL);
   }
   return result;
 }
 
@@ skipping 15 matching lines @@
   return Smi::FromInt(not_equal);
 }
 
 
 RUNTIME_FUNCTION(MaybeObject*, Runtime_NumberCompare) {
   NoHandleAllocation ha(isolate);
   ASSERT(args.length() == 3);
 
   CONVERT_DOUBLE_ARG_CHECKED(x, 0);
   CONVERT_DOUBLE_ARG_CHECKED(y, 1);
-  if (isnan(x) || isnan(y)) return args[2];
+  if (std::isnan(x) || std::isnan(y)) return args[2];
   if (x == y) return Smi::FromInt(EQUAL);
   if (isless(x, y)) return Smi::FromInt(LESS);
   return Smi::FromInt(GREATER);
 }
 
 
 // Compare two Smis as if they were converted to strings and then
 // compared lexicographically.
 RUNTIME_FUNCTION(MaybeObject*, Runtime_SmiLexicographicCompare) {
   NoHandleAllocation ha(isolate);
@@ skipping 202 matching lines @@
 
 
 RUNTIME_FUNCTION(MaybeObject*, Runtime_Math_atan2) {
   NoHandleAllocation ha(isolate);
   ASSERT(args.length() == 2);
   isolate->counters()->math_atan2()->Increment();
 
   CONVERT_DOUBLE_ARG_CHECKED(x, 0);
   CONVERT_DOUBLE_ARG_CHECKED(y, 1);
   double result;
-  if (isinf(x) && isinf(y)) {
+  if (std::isinf(x) && std::isinf(y)) {
     // Make sure that the result in case of two infinite arguments
     // is a multiple of Pi / 4. The sign of the result is determined
     // by the first argument (x) and the sign of the second argument
     // determines the multiplier: one or three.
     int multiplier = (x < 0) ? -1 : 1;
     if (y < 0) multiplier *= 3;
     result = multiplier * kPiDividedBy4;
   } else {
     result = atan2(x, y);
   }
@@ skipping 62 matching lines @@
 
   // If the second argument is a smi, it is much faster to call the
   // custom powi() function than the generic pow().
   if (args[1]->IsSmi()) {
     int y = args.smi_at(1);
     return isolate->heap()->NumberFromDouble(power_double_int(x, y));
   }
 
   CONVERT_DOUBLE_ARG_CHECKED(y, 1);
   double result = power_helper(x, y);
-  if (isnan(result)) return isolate->heap()->nan_value();
+  if (std::isnan(result)) return isolate->heap()->nan_value();
   return isolate->heap()->AllocateHeapNumber(result);
 }
 
 // Fast version of Math.pow if we know that y is not an integer and y is not
 // -0.5 or 0.5.  Used as slow case from full codegen.
 RUNTIME_FUNCTION(MaybeObject*, Runtime_Math_pow_cfunction) {
   NoHandleAllocation ha(isolate);
   ASSERT(args.length() == 2);
   isolate->counters()->math_pow()->Increment();
 
   CONVERT_DOUBLE_ARG_CHECKED(x, 0);
   CONVERT_DOUBLE_ARG_CHECKED(y, 1);
   if (y == 0) {
     return Smi::FromInt(1);
   } else {
     double result = power_double_double(x, y);
-    if (isnan(result)) return isolate->heap()->nan_value();
+    if (std::isnan(result)) return isolate->heap()->nan_value();
     return isolate->heap()->AllocateHeapNumber(result);
   }
 }
 
 
 RUNTIME_FUNCTION(MaybeObject*, Runtime_RoundNumber) {
   NoHandleAllocation ha(isolate);
   ASSERT(args.length() == 1);
   isolate->counters()->math_round()->Increment();
 
@@ skipping 81 matching lines @@
   ASSERT(args.length() == 3);
 
   CONVERT_ARG_HANDLE_CHECKED(JSDate, date, 0);
   CONVERT_DOUBLE_ARG_CHECKED(time, 1);
   CONVERT_SMI_ARG_CHECKED(is_utc, 2);
 
   DateCache* date_cache = isolate->date_cache();
 
   Object* value = NULL;
   bool is_value_nan = false;
-  if (isnan(time)) {
+  if (std::isnan(time)) {
     value = isolate->heap()->nan_value();
     is_value_nan = true;
   } else if (!is_utc &&
              (time < -DateCache::kMaxTimeBeforeUTCInMs ||
               time > DateCache::kMaxTimeBeforeUTCInMs)) {
     value = isolate->heap()->nan_value();
     is_value_nan = true;
   } else {
     time = is_utc ? time : date_cache->ToUTC(static_cast<int64_t>(time));
     if (time < -DateCache::kMaxTimeInMs ||
@@ skipping 6141 matching lines @@
     // Handle last resort GC and make sure to allow future allocations
     // to grow the heap without causing GCs (if possible).
     isolate->counters()->gc_last_resort_from_js()->Increment();
     isolate->heap()->CollectAllGarbage(Heap::kNoGCFlags,
                                        "Runtime::PerformGC");
   }
 }
 
 
 } }  // namespace v8::internal