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// { dg-do run { target c++23 } }
#include <spanstream>
#include <testsuite_hooks.h>
using std::ispanstream;
using std::ospanstream;
using std::span;
void
test_move()
{
char c;
{
const char str[] = "chars";
std::ispanstream a(str);
std::ispanstream b = std::move(a);
VERIFY( b.span().data() == str && b.span().size() == 6 );
VERIFY( b >> c );
VERIFY( c == 'c' );
a = std::move(b);
VERIFY( a.span().data() == str && a.span().size() == 6 );
VERIFY( a >> c >> c );
VERIFY( c == 'a' );
}
{
char buf[10] = {};
std::ospanstream a(buf);
std::ospanstream b = std::move(a);
VERIFY( b << 'c' );
VERIFY( buf[0] == 'c' );
VERIFY( !std::char_traits<char>::compare(buf, "c", 2) );
a = std::move(b);
VERIFY( a << 'h' << 'a' << "rs" );
VERIFY( !std::char_traits<char>::compare(buf, "chars", 6) );
}
{
char buf[10] = {};
std::spanstream a(buf);
std::spanstream b = std::move(a);
VERIFY( b.span().empty() );
VERIFY( b << 'c' );
VERIFY( buf[0] == 'c' );
VERIFY( !std::char_traits<char>::compare(buf, "c", 2) );
VERIFY( b.span().data() == buf && b.span().size() == 1 );
VERIFY( b >> c );
VERIFY( c == 'c' );
a = std::move(b);
VERIFY( a.span().data() == buf && a.span().size() == 1 );
VERIFY( a << 'h' << 'a' << "rs" );
VERIFY( !std::char_traits<char>::compare(buf, "chars", 6) );
VERIFY( a.span().data() == buf && a.span().size() == 5 );
}
}
void
test_swap()
{
{
const char str1[] = "chars";
const char str2[] = "STRING";
std::ispanstream a(str1);
std::ispanstream b(str2);
a.swap(b);
VERIFY( a.span().data() == str2 && a.span().size() == 7 );
VERIFY( b.span().data() == str1 && b.span().size() == 6 );
char c;
VERIFY( a >> c );
VERIFY( c == 'S' );
VERIFY( b >> c );
VERIFY( c == 'c' );
swap(a, b);
VERIFY( a.span().data() == str1 && a.span().size() == 6 );
VERIFY( b.span().data() == str2 && b.span().size() == 7 );
VERIFY( a >> c >> c );
VERIFY( c == 'a' );
VERIFY( b >> c >> c );
VERIFY( c == 'R' );
}
{
char buf1[] = "xxxxxxxxxxxxxxx";
char buf2[] = "xxxxxxxxxxxxxxx";
std::ospanstream a(buf1);
std::ospanstream b(buf2);
a.swap(b);
VERIFY( a << "STR" );
VERIFY( !std::char_traits<char>::compare(buf2, "STRx", 4) );
VERIFY( b << 'c' << 'h' );
VERIFY( !std::char_traits<char>::compare(buf1, "chx", 3) );
swap(a, b);
VERIFY( a.span().size() == 2 );
VERIFY( b.span().size() == 3 );
VERIFY( a << 'a' << "rs" );
VERIFY( !std::char_traits<char>::compare(buf1, "charsx", 6) );
VERIFY( b << "IN" << 'G' );
VERIFY( !std::char_traits<char>::compare(buf2, "STRINGx", 7) );
}
}
int main()
{
test_move();
test_swap();
}
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