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Which function returns true only for the characters defined as lowercase letters?

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+1 vote
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in C by (52.2k points)
Which function returns true only for the characters defined as lowercase letters?

(a) islow()

(b) islower()

(c) isalpa()

(d) isalnum()

The question was asked in an internship interview.

My doubt stems from Character Handling topic in division String Operations in C of C

1 Answer

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Best answer
Right choice is (b) islower()

Easy explanation - int islower( int c);

The islower function tests for any character that is a lowercase letter.

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