[c++] std::string formatting like sprintf

You could try this:

string str;
str.resize( _MAX_PATH );

sprintf( &str[0], "%s %s", "hello", "world" );
// optionals
// sprintf_s( &str[0], str.length(), "%s %s", "hello", "world" ); // Microsoft
// #include <stdio.h>
// snprintf( &str[0], str.length(), "%s %s", "hello", "world" ); // c++11

str.resize( strlen( str.data() ) + 1 );

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