// convert a string to uppercase letters void convert(char strng[])
{
int i = 0;
while (strng[1] ! = '\0')
{
strng[i] = ToUpper(strag[i]);
1++;
}
return;
}
char ToUpper (char letter) // convert a character to uppercase
{
if( (letter >='a') & (letter <= '2') )
return (letter - 'a' + 'A');
else
return (letter);
}
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