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// { dg-options "-std=gnu++20" }
// { dg-do run { target c++20 } }
#include <chrono>
#include <sstream>
#include <testsuite_hooks.h>
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" );
}
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" );
#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" );
std::string_view specs = "aAbBcCdDeFgGhHIjmMpqQrRSTuUVwWxXyYzZ";
std::string_view my_specs = "HIjMpqQrRSTX";
for (char c : specs)
{
char fmt[] = { '{', ':', '%', c, '}' };
try
{
(void) std::vformat(std::string_view(fmt, 5), std::make_format_args(1s));
// 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);
}
}
}
int main()
{
test01();
test02();
test_format();
// TODO: test_parse();
}
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