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// { dg-do run { target c++20 } }
// { dg-timeout-factor 2 }
#include <chrono>
#include <sstream>
#include <testsuite_hooks.h>
#ifndef __cpp_lib_char8_t
using char8_t = unsigned char; // Prevent errors if -fno-char8_t is used.
#endif
void
test01()
{
using namespace std::chrono;
std::stringstream ss;
ss << 0s << '\n';
ss << 3h + 5min << '\n';
ss << duration<long, std::ratio<2>>(3) << '\n';
ss << duration<long, std::ratio<2, 3>>(9) << '\n';
std::string s;
std::getline(ss, s);
VERIFY( s == "0s" );
std::getline(ss, s);
VERIFY( s == "185min" );
std::getline(ss, s);
VERIFY( s == "3[2]s" );
std::getline(ss, s);
VERIFY( s == "9[2/3]s" );
// LWG 4118. How should duration formatters format custom rep types?
ss.str("");
ss << duration<char>(121) << ' ';
ss << duration<wchar_t>(122) << ' ';
ss << duration<signed char>(123) << ' ';
ss << duration<unsigned char>(124) << ' ';
ss << duration<char8_t>(125) << ' ';
ss << duration<char16_t>(126) << ' ';
ss << duration<char32_t>(127) << ' ';
VERIFY( ss.str() == "121s 122s 123s 124s 125s 126s 127s " );
ss.str("");
ss << std::hex << std::uppercase << duration<const char>(0x1A) << ' ';
ss << std::hex << std::uppercase << duration<const wchar_t>(0x2A) << ' ';
ss << std::hex << std::uppercase << duration<signed char>(0x3A) << ' ';
ss << std::scientific << duration<const double>(4.5) << ' ';
VERIFY( ss.str() == "1As 2As 3As 4.500000E+00s " );
}
void
test02()
{
#ifdef _GLIBCXX_USE_WCHAR_T
using namespace std::chrono;
std::wstringstream ss;
ss << 0s << L'\n';
ss << 3h + 5min << L'\n';
ss << duration<long, std::ratio<2>>(3) << L'\n';
ss << duration<long, std::ratio<2, 3>>(9) << L'\n';
std::wstring s;
std::getline(ss, s);
VERIFY( s == L"0s" );
std::getline(ss, s);
VERIFY( s == L"185min" );
std::getline(ss, s);
VERIFY( s == L"3[2]s" );
std::getline(ss, s);
VERIFY( s == L"9[2/3]s" );
// LWG 4118. How should duration formatters format custom rep types?
ss.str(L"");
ss << duration<char>(121) << ' ';
ss << duration<wchar_t>(122) << ' ';
ss << duration<signed char>(123) << ' ';
ss << duration<unsigned char>(124) << ' ';
ss << duration<char8_t>(125) << ' ';
ss << duration<char16_t>(126) << ' ';
ss << duration<char32_t>(127) << ' ';
VERIFY( ss.str() == L"121s 122s 123s 124s 125s 126s 127s " );
ss.str(L"");
ss << std::hex << std::uppercase << duration<const char>(0x1A) << ' ';
ss << std::hex << std::uppercase << duration<const wchar_t>(0x2A) << ' ';
ss << std::hex << std::uppercase << duration<signed char>(0x3A) << ' ';
ss << std::scientific << duration<const double>(4.5) << ' ';
VERIFY( ss.str() == L"1As 2As 3As 4.500000E+00s " );
#endif
}
void
test_format()
{
using namespace std::chrono_literals;
auto s = std::format("{} {}", 1h + 23min + 45s, -42min);
VERIFY( s == "5025s -42min" );
s = std::format("{:%j} {:%j} {:%j}", 1h + 23min + 45s, 75h, -99h);
VERIFY( s == "0 3 -4" );
s = std::format("{:%T = %H:%M:%S}", 1h + 23min + 45s);
VERIFY( s == "01:23:45 = 01:23:45" );
s = std::format("{:%Q} {:%q} {:%Q%q}", 6min + 1s, 44min, -22h);
VERIFY( s == "361 min -22h" );
std::wstring ws = std::format(L"{:%Q%q}", 81s);
VERIFY( ws == L"81s" );
// Only print '-' on numeric fields for negative durations:
s = std::format("{:%Q} {:%q} {:%q%Q}", -21h, -20h, -19h);
VERIFY( s == "-21 h h-19" );
s = std::format("{:%p} {:%p%H}", -2h, -13h);
VERIFY( s == "AM PM-13" );
s = std::format("{:%t} {:%t%M}", -2h, -123s);
VERIFY( s == "\t \t-02" );
// Locale-specific formats:
s = std::format(std::locale::classic(), "{:%r %OH:%OM:%OS}", 123456ms);
VERIFY( s == "12:02:03 AM 00:02:03" );
std::string_view specs = "aAbBcCdDeFgGhHIjmMpqQrRSTuUVwWxXyYzZ";
std::string_view my_specs = "HIjMpqQrRSTX";
for (char c : specs)
{
char fmt[] = { '{', ':', '%', c, '}' };
try
{
auto s = 1s;
(void) std::vformat(std::string_view(fmt, 5), std::make_format_args(s));
// The call above should throw for any conversion-spec not in my_specs:
VERIFY(my_specs.find(c) != my_specs.npos);
}
catch (const std::format_error& e)
{
VERIFY(my_specs.find(c) == my_specs.npos);
std::string_view s = e.what();
// Libstdc++-specific message:
VERIFY(s.find("format argument does not contain the information "
"required by the chrono-specs") != s.npos);
}
}
std::chrono::duration<float, std::milli> d{0.5};
s = std::format("{}", d);
VERIFY( s == "0.5ms" );
std::chrono::duration<unsigned, std::milli> u{500}; // PR libstdc++/115668
s = std::format("{}", u);
VERIFY( s == "500ms" );
s = std::format("{:%Q %q}", u);
VERIFY( s == "500 ms" );
// PR libstdc++/116755 extra minus sign for most negative value
auto minsec = std::chrono::seconds::min();
s = std::format("{}", minsec);
auto expected = std::format("{}s", minsec.count());
VERIFY( s == expected );
s = std::format("{:%Q%q}", minsec);
VERIFY( s == expected );
// LWG 4118. How should duration formatters format custom rep types?
s = std::format("{}", std::chrono::duration<char>(100));
VERIFY( s == "100s" );
s = std::format("{:%Q}", std::chrono::duration<char>(101));
VERIFY( s == "101" );
#ifdef _GLIBCXX_USE_WCHAR_T
ws = std::format(L"{}", std::chrono::duration<char>(102));
VERIFY( ws == L"102s" );
ws = std::format(L"{}", std::chrono::duration<wchar_t>(103));
VERIFY( ws == L"103s" );
#endif
s = std::format("{}", std::chrono::duration<signed char>(50));
VERIFY( s == "50s" );
s = std::format("{:%Q}", std::chrono::duration<signed char>(51));
VERIFY( s == "51" );
s = std::format("{}", std::chrono::duration<unsigned char>(52));
VERIFY( s == "52s" );
s = std::format("{:%Q}", std::chrono::duration<unsigned char>(53));
VERIFY( s == "53" );
#if __cplusplus > 202002L
static_assert( ! std::formattable<std::chrono::duration<wchar_t>, char> );
static_assert( ! std::formattable<std::chrono::duration<char16_t>, char> );
static_assert( ! std::formattable<std::chrono::duration<char32_t>, char> );
static_assert( ! std::formattable<std::chrono::duration<char16_t>, wchar_t> );
static_assert( ! std::formattable<std::chrono::duration<char32_t>, wchar_t> );
#ifdef __cpp_lib_char8_t
static_assert( ! std::formattable<std::chrono::duration<char8_t>, char> );
static_assert( ! std::formattable<std::chrono::duration<char8_t>, wchar_t> );
#endif
#endif
}
void
test_parse()
{
using namespace std::chrono;
seconds s;
milliseconds ms;
microseconds us;
std::istringstream is(" 2023-07-24 13:05");
VERIFY( is >> parse(" %Y-%m-%d %H:%M", s) );
VERIFY( is.good() );
VERIFY( s == 13h + 5min );
s = 999s;
is.clear();
is.str("Thursday July 2023");
VERIFY( !(is >> parse("%a %b %C%y", s)) );
VERIFY( ! is.eof() );
VERIFY( s == 999s );
is.clear();
is.str("27");
VERIFY( is >> parse("%j", s) );
VERIFY( is.eof() );
VERIFY( s == 24h * 27 );
is.clear();
is.str("027");
VERIFY( is >> parse("%j", s) );
VERIFY( ! is.eof() );
VERIFY( s == 24h * 27 );
is.clear();
is.str("0027");
VERIFY( is >> parse("%j", s) ); // defaults to %3j
VERIFY( is.get() == '7' );
VERIFY( s == 24h * 2 );
is.clear();
is.str("1234");
VERIFY( is >> parse("%2j", s) );
VERIFY( is.get() == '3' );
VERIFY( s == 24h * 12 );
is.clear();
is.str("001234");
VERIFY( is >> parse("%4j", s) );
VERIFY( is.get() == '3' );
VERIFY( s == 24h * 12 );
is.clear();
is.str("1234");
VERIFY( is >> parse("%4j", s) );
VERIFY( ! is.eof() );
VERIFY( s == 24h * 1234 );
is.clear();
is.str("125");
VERIFY( is >> parse("%S", s) );
VERIFY( s == 12s );
VERIFY( is.get() == '5' );
is.clear();
is.str("0.125");
VERIFY( is >> parse("%S", s) );
VERIFY( s == 0s );
VERIFY( is.get() == '.' );
is.clear();
is.str("0.125");
VERIFY( is >> parse("%S", ms) );
VERIFY( ms == 125ms );
VERIFY( ! is.eof() );
is.clear();
is.str("00.125");
VERIFY( is >> parse("%S", ms) );
VERIFY( ms == 125ms );
VERIFY( ! is.eof() );
is.clear();
is.str("012.345");
VERIFY( is >> parse("%S", ms) );
VERIFY( ms == 1000ms );
VERIFY( is.get() == '2' );
is.clear();
is.str("0.1256");
VERIFY( is >> parse("%S", ms) );
VERIFY( ms == 125ms );
VERIFY( is.get() == '6' );
is.clear();
is.str("0.0009765");
VERIFY( is >> parse("%S", us) );
VERIFY( us == 976us );
VERIFY( is.get() == '5' );
is.clear();
is.str("0.5");
std::chrono::duration<double> ds;
VERIFY( is >> parse("%S", ds) );
VERIFY( ds == 0.5s );
is.clear();
is.str("0.125");
std::chrono::duration<double, std::milli> dms;
VERIFY( is >> parse("%S", dms) );
VERIFY( dms == 0.125s );
}
int main()
{
test01();
test02();
test_format();
test_parse();
}
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