cannot convert 'std::basic_string' to 'const char*' for argument '1' to 'int system(const char*)'

Question

I get this error: \"invalid operands of types \'const char*\' and \'const char [6]\' to binary \'operator+\'\" when i try to compile my script. Here should be the error:

Answer 1

The system function requires const char *, and your expression is of the type std::string. You should write

string name = "john";
string system_str = " quickscan.exe resolution 300 selectscanner jpg showui showprogress filename '"+name+".jpg'";
system(system_str.c_str ());