Lowercase to Uppercase

Program to convert all lowercase characters to Uppercase

Source Code

#include <iostream.h>
#include <ctype.h> // required for the character function library

void ConvertToUpper(char []);

int main()
{
const int MAXCHARS = 100;
char message[MAXCHARS];

cout << "\nType in any sequence of characters: ";

cin.getline(message,MAXCHARS);

ConvertToUpper(message);

cout << "The characters just entered, in uppercase are: "
<< message << endl;

return 0;
}

// this function converts all lowercase character to uppercase
void ConvertToUpper(char message[])
{
for(int i = 0; message[i] != '\0'; i++)
message[i] = toupper(message[i]);

return;
}