Replacing capital letters with lowercase letters

[iamyiyaj]

I tried the code below and it does not budge although it compiles

#include <iostream>
using namespace std;

void mess(char[]);

int main()
{
	char stuff[] = "Tom Talbert Tried Trains";
	cout << stuff << endl;
	mess(stuff);
	cout << stuff << endl;

	cin.get();
	return 0;
}

void mess(char str[])
{
	int step = 0;
	while (str[step] != '\0')
	{
		if (str[step] == 'T')
			tolower(str[step]);
		step++;
	}
}

[lastchance]

Replace lines 22 and 23 by
str[step] = tolower(str[step]);

You have to actually use the character returned by tolower().