[Main]
Name=islower
Type=Function
Subtype=Macro
Header Files=ctype.h
Definition=short islower (short c);
Real Definition=#define islower(c) ({register short __c=(c);__c>='a'&&__c<='z';})

[Description]
Checks whether a character is a lowercase.

[Explanation]
islower returns nonzero if <I>c</I> is a lowercase letter ('a' to 'z'), otherwise it returns zero.
It is a small inline function which is implemented using GNU C smart macros.
