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Why we need to use # include < ctype.h >?

Mushfiqur Rahman

1 Aug, 2013

# include < ctype.h >: All the character functions require ctype.h header file. The following lists are some function of ctype.

islower(c) It returns True if C is a lowercase letter otherwise False.

isupper(c) It returns True if C is an uppercase letter otherwise False.

Etc.

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