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Add double-conversion to third_party (#447)
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Gautham
GitHub
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314
third_party/double-conversion/test/checks.h
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314
third_party/double-conversion/test/checks.h
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// Copyright 2006-2008 the V8 project authors. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#ifndef V8_CHECKS_H_
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#define V8_CHECKS_H_
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#include "libc/isystem/string.h"
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#include "third_party/double-conversion/test/flags.h"
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extern "C" void V8_Fatal(const char* file, int line, const char* format, ...);
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void API_Fatal(const char* location, const char* format, ...);
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// The FATAL, DOUBLE_CONVERSION_UNREACHABLE and DOUBLE_CONVERSION_UNIMPLEMENTED macros are useful during
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// development, but they should not be relied on in the final product.
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#ifdef DEBUG
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#define FATAL(msg) \
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V8_Fatal(__FILE__, __LINE__, "%s", (msg))
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#define DOUBLE_CONVERSION_UNIMPLEMENTED() \
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V8_Fatal(__FILE__, __LINE__, "unimplemented code")
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#define DOUBLE_CONVERSION_UNREACHABLE() \
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V8_Fatal(__FILE__, __LINE__, "unreachable code")
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#else
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#define FATAL(msg) \
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V8_Fatal("", 0, "%s", (msg))
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#define DOUBLE_CONVERSION_UNIMPLEMENTED() \
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V8_Fatal("", 0, "unimplemented code")
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#define DOUBLE_CONVERSION_UNREACHABLE() ((void) 0)
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#endif
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// Used by the CHECK macro -- should not be called directly.
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static inline void CheckHelper(const char* file,
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int line,
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const char* source,
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bool condition) {
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if (!condition)
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V8_Fatal(file, line, "CHECK(%s) failed", source);
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}
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// The CHECK macro checks that the given condition is true; if not, it
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// prints a message to stderr and aborts.
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#define CHECK(condition) CheckHelper(__FILE__, __LINE__, #condition, condition)
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// Helper function used by the CHECK_EQ function when given int
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// arguments. Should not be called directly.
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static inline void CheckEqualsHelper(const char* file, int line,
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const char* expected_source, int expected,
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const char* value_source, int value) {
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if (expected != value) {
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V8_Fatal(file, line,
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"CHECK_EQ(%s, %s) failed\n# Expected: %i\n# Found: %i",
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expected_source, value_source, expected, value);
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}
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}
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// Helper function used by the CHECK_EQ function when given int64_t
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// arguments. Should not be called directly.
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static inline void CheckEqualsHelper(const char* file, int line,
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const char* expected_source,
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int64_t expected,
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const char* value_source,
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int64_t value) {
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if (expected != value) {
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// Print int64_t values in hex, as two int32s,
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// to avoid platform-dependencies.
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V8_Fatal(file, line,
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"CHECK_EQ(%s, %s) failed\n#"
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" Expected: 0x%08x%08x\n# Found: 0x%08x%08x",
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expected_source, value_source,
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static_cast<uint32_t>(expected >> 32),
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static_cast<uint32_t>(expected),
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static_cast<uint32_t>(value >> 32),
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static_cast<uint32_t>(value));
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}
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}
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// Helper function used by the CHECK_NE function when given int
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// arguments. Should not be called directly.
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static inline void CheckNonEqualsHelper(const char* file,
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int line,
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const char* unexpected_source,
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int unexpected,
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const char* value_source,
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int value) {
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if (unexpected == value) {
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V8_Fatal(file, line, "CHECK_NE(%s, %s) failed\n# Value: %i",
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unexpected_source, value_source, value);
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}
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}
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// Helper function used by the CHECK function when given string
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// arguments. Should not be called directly.
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static inline void CheckEqualsHelper(const char* file,
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int line,
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const char* expected_source,
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const char* expected,
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const char* value_source,
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const char* value) {
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if ((expected == NULL && value != NULL) ||
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(expected != NULL && value == NULL) ||
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(expected != NULL && value != NULL && strcmp(expected, value) != 0)) {
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V8_Fatal(file, line,
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"CHECK_EQ(%s, %s) failed\n# Expected: %s\n# Found: %s",
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expected_source, value_source, expected, value);
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}
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}
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static inline void CheckNonEqualsHelper(const char* file,
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int line,
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const char* expected_source,
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const char* expected,
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const char* value_source,
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const char* value) {
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if (expected == value ||
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(expected != NULL && value != NULL && strcmp(expected, value) == 0)) {
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V8_Fatal(file, line, "CHECK_NE(%s, %s) failed\n# Value: %s",
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expected_source, value_source, value);
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}
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}
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// Helper function used by the CHECK function when given pointer
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// arguments. Should not be called directly.
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static inline void CheckEqualsHelper(const char* file,
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int line,
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const char* expected_source,
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const void* expected,
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const char* value_source,
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const void* value) {
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if (expected != value) {
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V8_Fatal(file, line,
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"CHECK_EQ(%s, %s) failed\n# Expected: %p\n# Found: %p",
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expected_source, value_source,
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expected, value);
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}
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}
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static inline void CheckNonEqualsHelper(const char* file,
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int line,
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const char* expected_source,
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const void* expected,
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const char* value_source,
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const void* value) {
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if (expected == value) {
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V8_Fatal(file, line, "CHECK_NE(%s, %s) failed\n# Value: %p",
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expected_source, value_source, value);
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}
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}
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// Helper function used by the CHECK function when given floating
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// point arguments. Should not be called directly.
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static inline void CheckEqualsHelper(const char* file,
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int line,
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const char* expected_source,
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double expected,
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const char* value_source,
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double value) {
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// Force values to 64 bit memory to truncate 80 bit precision on IA32.
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volatile double* exp = new double[1];
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*exp = expected;
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volatile double* val = new double[1];
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*val = value;
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if (*exp != *val) {
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V8_Fatal(file, line,
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"CHECK_EQ(%s, %s) failed\n# Expected: %f\n# Found: %f",
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expected_source, value_source, *exp, *val);
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}
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delete[] exp;
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delete[] val;
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}
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static inline void CheckNonEqualsHelper(const char* file,
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int line,
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const char* expected_source,
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double expected,
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const char* value_source,
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double value) {
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// Force values to 64 bit memory to truncate 80 bit precision on IA32.
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volatile double* exp = new double[1];
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*exp = expected;
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volatile double* val = new double[1];
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*val = value;
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if (*exp == *val) {
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V8_Fatal(file, line,
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"CHECK_NE(%s, %s) failed\n# Value: %f",
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expected_source, value_source, *val);
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}
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delete[] exp;
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delete[] val;
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}
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namespace v8 {
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class Value;
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template <class T> class Handle;
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}
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void CheckNonEqualsHelper(const char* file,
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int line,
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const char* unexpected_source,
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v8::Handle<v8::Value> unexpected,
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const char* value_source,
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v8::Handle<v8::Value> value);
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void CheckEqualsHelper(const char* file,
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int line,
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const char* expected_source,
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v8::Handle<v8::Value> expected,
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const char* value_source,
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v8::Handle<v8::Value> value);
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#define CHECK_EQ(expected, value) CheckEqualsHelper(__FILE__, __LINE__, \
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#expected, expected, #value, value)
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#define CHECK_NE(unexpected, value) CheckNonEqualsHelper(__FILE__, __LINE__, \
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#unexpected, unexpected, #value, value)
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#define CHECK_GT(a, b) CHECK((a) > (b))
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#define CHECK_GE(a, b) CHECK((a) >= (b))
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// This is inspired by the static assertion facility in boost. This
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// is pretty magical. If it causes you trouble on a platform you may
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// find a fix in the boost code.
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template <bool> class StaticAssertion;
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template <> class StaticAssertion<true> { };
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// This macro joins two tokens. If one of the tokens is a macro the
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// helper call causes it to be resolved before joining.
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#define SEMI_STATIC_JOIN(a, b) SEMI_STATIC_JOIN_HELPER(a, b)
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#define SEMI_STATIC_JOIN_HELPER(a, b) a##b
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// Causes an error during compilation of the condition is not
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// statically known to be true. It is formulated as a typedef so that
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// it can be used wherever a typedef can be used. Beware that this
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// actually causes each use to introduce a new defined type with a
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// name depending on the source line.
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template <int> class StaticAssertionHelper { };
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#define STATIC_CHECK(test) \
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typedef \
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StaticAssertionHelper<sizeof(StaticAssertion<static_cast<bool>(test)>)> \
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SEMI_STATIC_JOIN(__StaticAssertTypedef__, __LINE__)
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// The DOUBLE_CONVERSION_ASSERT macro is equivalent to CHECK except that it only
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// generates code in debug builds.
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#ifdef DEBUG
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#define DOUBLE_CONVERSION_ASSERT_RESULT(expr) CHECK(expr)
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#define DOUBLE_CONVERSION_ASSERT(condition) CHECK(condition)
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#define DOUBLE_CONVERSION_ASSERT_EQ(v1, v2) CHECK_EQ(v1, v2)
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#define DOUBLE_CONVERSION_ASSERT_NE(v1, v2) CHECK_NE(v1, v2)
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#define DOUBLE_CONVERSION_ASSERT_GE(v1, v2) CHECK_GE(v1, v2)
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#define SLOW_DOUBLE_CONVERSION_ASSERT(condition) if (FLAG_enable_slow_asserts) CHECK(condition)
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#else
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#define DOUBLE_CONVERSION_ASSERT_RESULT(expr) (expr)
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#define DOUBLE_CONVERSION_ASSERT(condition) ((void) 0)
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#define DOUBLE_CONVERSION_ASSERT_EQ(v1, v2) ((void) 0)
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#define DOUBLE_CONVERSION_ASSERT_NE(v1, v2) ((void) 0)
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#define DOUBLE_CONVERSION_ASSERT_GE(v1, v2) ((void) 0)
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#define SLOW_DOUBLE_CONVERSION_ASSERT(condition) ((void) 0)
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#endif
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// Static asserts has no impact on runtime performance, so they can be
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// safely enabled in release mode. Moreover, the ((void) 0) expression
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// obeys different syntax rules than typedef's, e.g. it can't appear
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// inside class declaration, this leads to inconsistency between debug
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// and release compilation modes behaviour.
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#define STATIC_DOUBLE_CONVERSION_ASSERT(test) STATIC_CHECK(test)
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#define DOUBLE_CONVERSION_ASSERT_TAG_ALIGNED(address) \
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DOUBLE_CONVERSION_ASSERT((reinterpret_cast<intptr_t>(address) & kHeapObjectTagMask) == 0)
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#define DOUBLE_CONVERSION_ASSERT_SIZE_TAG_ALIGNED(size) DOUBLE_CONVERSION_ASSERT((size & kHeapObjectTagMask) == 0)
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#define DOUBLE_CONVERSION_ASSERT_NOT_NULL(p) DOUBLE_CONVERSION_ASSERT_NE(NULL, p)
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#endif // V8_CHECKS_H_
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