/* Program to demonstrate simple replacing of characters in a string. The optional 'bn' argument is to specify whether built-in functions are to be used to perform replace or not. */ // Input - A String, A character to replace, // & A character to replace with. // Input is required twice, 1st for a // C-string, and 2nd for a C++ string. // Output - String with characters replaced, // and then the number of replaces. #include #include #include #include int Replace(char* cstr, char f, char r, bool bn=true) /// C-Style Fx() to replace from C-Strings. { int ctr = 0; if(bn) { char* pch=strchr(cstr,f); while (pch!=NULL) { cstr[pch-cstr]=r; ctr++; pch=strchr(pch+1,f); } } else { int i=0; for(;cstr[i]!='\0';i++) { if(cstr[i]==f) {cstr[i]=r; ctr++;}} } return ctr; } int Replace(string& str, char f, char r, bool bn=true) /// C++ Function to replace from C++-Strings. { int ctr=0; ///CharToReplace if(bn) { ctr = count(str.begin(),str.end(),f); replace(str.begin(),str.end(),f,r); } else { for(char& i:str) {if(i==f){i=r; ctr++;}} } return ctr; } int main(char argc, char** argv) { string s; char *cs = new char[100], fchar,rchar; int ctr = 0; /// Part 1 - C-String. cin.getline(cs,100); cin>>fchar>>rchar; ctr = Replace(cs,fchar,rchar); cout<<"Final String - "<>fchar>>rchar; ctr = Replace(s,fchar,rchar); cout<<"Final String - "<

String Character Replacer