gcc v10.2.0,-std=c++11 我没有尝试使用'std::to_string()‘将双精度值转换为文字字符串。尝试获得与将整数添加到字符串但具有双精度值的类似效果。预期输出:"abcdA“ string s { "abcd" };// s = s + d; // Error. no match for ‘operatoroperan
我如何连接两个const_string?它的主页说:semnet/realfile.cpp:185:13: error: no match for ‘operator+’ in ‘a + b’
semnet/realfile.cpp:185std::operator+(std::ptrdiff_t, const
:test.cpp: In function ‘int main()’:
test.cpp:8:6: error: no match for ‘operator_Traits, class _Alloc> std::basic_string<_CharT, _Traits, _Alloc> std::operator+(const std::basic_string_Traits, class _Alloc> std::basic_string<_CharT, _Trait