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(gdb) p str
$3 = {
static npos = 4294967295,
_M_dataplus = {
<std::allocator<char>> = {
<__gnu_cxx::new_allocator<char>> = {<No data fields>}, <No data fields>},
members of std::basic_string<char, std::char_traits<char>, std::allocator<char> >::_Alloc_hider:
_M_p = 0xffffd5d8 "\024\240\004\b\364/A"
}
}
(gdb) p str
$1 = {static npos = 4294967295, _M_dataplus = {<std::allocator<char>> = {<__gnu_cxx::new_allocator<char>> = {<No data fields>}, <No data fields>}, _M_p = 0x804a014 "1234"}}
(gdb) pstring str
String = "1234"
String size/length = 4
String capacity = 4
String ref-count = 0