ager@google.com
c4c92c4f7b
and bin. Cleaned up globals.h. Common parts now in platform/globals.h. vm specific parts are in vm/globals.h and bin/globals.h is gone. R=sgjesse@google.com,iposva@google.com BUG= TEST= Review URL: http://codereview.chromium.org//9114008 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@3030 260f80e4-7a28-3924-810f-c04153c831b5
53 lines
1.1 KiB
C
53 lines
1.1 KiB
C
// Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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#ifndef PLATFORM_C99_SUPPORT_WIN_H_
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#define PLATFORM_C99_SUPPORT_WIN_H_
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// Visual C++ is missing a bunch of C99 math macros and
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// functions. Define them here.
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#include <float.h>
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static const unsigned __int64 kQuietNaNMask =
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static_cast<unsigned __int64>(0xfff) << 51;
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#define INFINITY HUGE_VAL
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#define NAN \
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*reinterpret_cast<const double*>(&kQuietNaNMask)
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static inline int isinf(double x) {
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return (_fpclass(x) & (_FPCLASS_PINF | _FPCLASS_NINF)) != 0;
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}
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static inline int isnan(double x) {
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return _isnan(x);
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}
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static inline int signbit(double x) {
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if (x == 0) {
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return _fpclass(x) & _FPCLASS_NZ;
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} else {
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return x < 0;
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}
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}
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static inline double trunc(double x) {
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if (x < 0) {
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return ceil(x);
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} else {
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return floor(x);
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}
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}
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static inline double round(double x) {
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if (x < 0) {
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return ceil(x - 0.5);
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} else {
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return floor(x + 0.5);
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}
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}
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#endif // PLATFORM_C99_SUPPORT_WIN_H_
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