#include <iostream>
#include <cstring>
using namespace std;
void convertToLower(char* string)
{
for (unsigned int i = 0; i < strlen(string); i++)
{
if (string[i] >= 65 && string[i] <= 90)
{
string[i] |= 32;
}
}
cout << string << endl;
}
int main()
{
char test[] = "TEST";
convertToLower(test);
}
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