Learn to Program with C_ Learn to Program using the Popular C Programming Language ( PDFDrive )

Chapter 8 ■ Arrays
} //end lettersOnlyLower
int palindrome(char word[]) {
int lo = 0;
int hi = strlen(word) - 1;
while (lo < hi)
if (word[lo++] != word[hi--]) return 0;
return 1;
} //end palindrome
The program prompts the user for a phrase and tells her whether or not it is a palindrome. We
also print the converted phrase to show you how the function works.
A sample run is shown here:
Type a phrase. (To stop, press "Enter" only): Madam I'm Adam
Converted to: madamimadam
is a palindrome
Type a phrase. (To stop, press "Enter" only): Flo, gin is a sin. I golf.
Converted to: floginisasinigolf
is a palindrome
Type a phrase. (To stop, press "Enter" only): Never odd or even.
Converted to: neveroddoreven
is a palindrome
Type a phrase. (To stop, press "Enter" only): Thermostat
Converted to: thermostat
is not a palindrome
Type a phrase. (To stop, press "Enter" only): Pull up if I pull up.
Converted to: pullupifipullup
is a palindrome
Type a phrase. (To stop, press "Enter" only):
8.10 Array of Strings – Name of Day Revisited
In Program P7.4, we wrote a function printDay, which printed the name of a day, given the
number of the day. We will now write a function nameOfDay that will be given two arguments:
the first is the number of a day and the second is a character array. The function will store, in the
array, the name of the day corresponding to the number of the day. For example, the call
nameOfDay(6, dayName);
will store Friday in dayName, assuming dayName is a character array.
We show how to write nameOfDay using an array to store the names of the days. Suppose we
have an array day as shown in Figure 8-2 (day[0] is not used and is not shown).
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