c++ question

[wo1olf]

how can convert a string type (in capital letters) to small letters .
Ex. From 'A' to 'a' ?

[MTsoul]

char capital = 'A';

char small = capital + 26;

[wo1olf]

thnks. But the thing is i want to do that with a string type, not char :cross-eye
(my teacher doesn't want us to use char type but only string...)

[Ben H]

To loop through a character array and use tolower is ugly, although probably all you are expected to do. I personally would use the transform function with tolower:


#include <iostream>
#include <string>
#include <cctype>
using namespace std;
int main() {
string lc_string = "SOME UPPER SoMe LoWeR";
int (*down_func)(int) = tolower;
transform(lc_string.begin(), lc_string.end(), lc_string.begin(), down_func);
cout<<lc_string;
return 0;
}


Hope that helps a bit :thumb:

-Ben

EDIT: Whoops, did lower to upper not upper to lower... Changed it now :trout: