replace
replace (size_type pos1, size_type n1,
replace (size_type pos, size_type n1, const charT* s, size_type n2)
replace (size_type pos, size_type n1, size_type n2, charT c)
replace (iterator i1, iterator i2, InputIterator j1, InputIterator j2)
void replace(_ForwardIter __first, _ForwardIter __last,
void replace(
void replace(
replace(char *origfile, char *newfile)