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// { dg-additional-options "-lstdc++exp" { target { *-*-mingw* } } }
// { dg-do run { target c++23 } }
// { dg-require-fileio "" }
#include <print>
#include <cstdio>
#include <spanstream>
#include <testsuite_hooks.h>
#include <testsuite_fs.h>
void
test_print_default()
{
std::print("H{}ll{}, {}!", 3, 0, "world");
// { dg-output "H3ll0, world!" }
}
void
test_println_default()
{
std::println("I walk the line");
// { dg-output "I walk the line\n" }
}
void
test_print_file()
{
__gnu_test::scoped_file f;
FILE* strm = std::fopen(f.path.string().c_str(), "w");
VERIFY( strm );
std::print(strm, "File under '{}' for {}", 'O', "OUT OF FILE");
std::fclose(strm);
std::ifstream in(f.path);
std::string txt(std::istreambuf_iterator<char>(in), {});
VERIFY( txt == "File under 'O' for OUT OF FILE" );
}
void
test_println_file()
{
__gnu_test::scoped_file f;
FILE* strm = std::fopen(f.path.string().c_str(), "w");
VERIFY( strm );
std::println(strm, "{} Lineman was a song I once heard", "Wichita");
std::fclose(strm);
std::ifstream in(f.path);
std::string txt(std::istreambuf_iterator<char>(in), {});
VERIFY( txt == "Wichita Lineman was a song I once heard\n" );
}
void
test_print_raw()
{
__gnu_test::scoped_file f;
FILE* strm = std::fopen(f.path.string().c_str(), "w");
VERIFY( strm );
std::print(strm, "{}", '\xa3'); // Not a valid UTF-8 string.
std::fclose(strm);
std::ifstream in(f.path);
std::string txt(std::istreambuf_iterator<char>(in), {});
// Invalid UTF-8 should be written out unchanged if the stream is not
// connected to a tty:
VERIFY( txt == "\xa3" );
}
void
test_vprint_nonunicode()
{
std::vprint_nonunicode("{0} in \xc0 {0} out\n",
std::make_format_args("garbage"));
// { dg-output "garbage in . garbage out" }
}
void
test_errors()
{
#ifdef __cpp_exceptions
try
{
std::print(stdin, "{}", "nope");
VERIFY(false);
}
catch (const std::system_error&)
{
}
#endif
}
int main()
{
test_print_default();
test_println_default();
test_print_file();
test_println_file();
test_print_raw();
test_vprint_nonunicode();
test_errors();
}
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