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Use fixed format in double->string conversion by default.

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GitOrigin-RevId: 5fdffeefb6f843ff3290bda21b2a71d5ea275f3f
This commit is contained in:
levlam 2018-02-11 12:47:11 +03:00
parent e3867152e7
commit ecf5405d86
2 changed files with 12 additions and 10 deletions
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1
tdutils/td/utils/StringBuilder.cpp
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@ -71,6 +71,7 @@ StringBuilder &StringBuilder::operator<<(double x) {
static TD_THREAD_LOCAL std::stringstream *ss;
if (init_thread_local<std::stringstream>(ss)) {
ss->imbue(std::locale::classic());
ss->setf(std::ios_base::fixed, std::ios_base::floatfield);
} else {
ss->str(std::string());
ss->clear();

21
tdutils/test/misc.cpp
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@ -200,19 +200,20 @@ static void test_to_double_one(CSlice str, Slice expected) {
}
static void test_to_double() {
test_to_double_one("0", "0");
test_to_double_one("1", "1");
test_to_double_one("-10", "-10");
test_to_double_one("1.234", "1.234");
test_to_double_one("-1.234e2", "-123.4");
test_to_double_one("0", "0.000000");
test_to_double_one("1", "1.000000");
test_to_double_one("-10", "-10.000000");
test_to_double_one("1.234", "1.234000");
test_to_double_one("-1.234e2", "-123.400000");
test_to_double_one("inf", "inf");
test_to_double_one(" inF asdasd", "inf");
test_to_double_one(" inFasdasd", "0");
test_to_double_one(" inFasdasd", "0.000000");
test_to_double_one(" NaN", "nan");
test_to_double_one(" 12345678910111213141516171819 asdasd", "1.23457e+28");
test_to_double_one("1.234567891011121314E123", "1.23457e+123");
test_to_double_one("123456789", "1.23457e+08");
test_to_double_one("-1,234567891011121314E123", "-1");
test_to_double_one(" 12345678910111213141516171819 asdasd", "12345678910111213670658736128.000000");
test_to_double_one("1.234567891011121314E123", "1234567891011121363209105003376291141757777526749278953577304234065881343284952489418916814035346625663604561924259911303168.000000");
test_to_double_one("1.234567891011121314E-9", "0.000000");
test_to_double_one("123456789", "123456789.000000");
test_to_double_one("-1,234567891011121314E123", "-1.000000");
}
TEST(Misc, to_double) {