Miscellaneous C++ Problems §

How to get the writeable underlying buffer of std::string before C++ 17? §

Since C++ 17 std::string::data() returns char* buffer, which is writeable. Before C++ 17, we have the following workarounds:

const char foo[] = "1145141919810";
std::string s;
s.resize(sizeof(foo));
memcpy(&str[0], foo, sizeof(foo));
memcpy(&str.front(), foo, sizeof(foo));