String substring substitution function __ function

String substring substitution function

void String_replace (std::string &strbig, const std::string &STRSRC, const std::string &STRDST) {std::string :: Size_type pos = 0; Std::string::size_type Srclen = Strsrc.size (); Std::string::size_type Dstlen = Strdst.size (); while ((Pos=strbig.find (STRSRC, POS))!= std::string::npos) {strbig.replace (pos, Srclen, STRDST); pos = = Dstlen;}

The ability to replace a substring in a string with another substring. In which, the Stirng::replace function, the first argument is the position where the substitution begins, the second parameter is the number of substituted characters, and the third parameter is the new substring.