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Test signbit.

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This commit is contained in:
Victor Zverovich 2014-06-06 11:04:27 -07:00
parent 34b5030239
commit 5b054ae7b8
1 changed files with 2 additions and 0 deletions
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2
test/format-test.cc
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@ -49,6 +49,7 @@ FILE *FOpen(const char *filename, const char *mode) {
#include "util.h"
#include "gtest-extra.h"
#include <math.h>
#include <stdint.h>
#undef min
@ -1232,6 +1233,7 @@ TEST(FormatterTest, FormatNaN) {
double nan = std::numeric_limits<double>::quiet_NaN();
EXPECT_EQ("nan", str(Format("{}") << nan));
EXPECT_EQ("+nan", str(Format("{:+}") << nan));
EXPECT_EQ(1, signbit(-nan));
EXPECT_EQ("-nan", str(Format("{}") << -nan));
EXPECT_EQ(" nan", str(Format("{: }") << nan));
EXPECT_EQ("NAN", str(Format("{:F}") << nan));