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Standard library header
<wctype.h>
(C95)
From cppreference.com
<
c
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header
C
Compiler support
Language
Headers
Type support
Program utilities
Variadic function support
Error handling
Dynamic memory management
Strings library
Algorithms
Numerics
Date and time utilities
Input/output support
Localization support
Concurrency support
(C11)
Technical Specifications
Symbol index
[edit]
Standard Library headers
<assert.h>
<complex.h>
(C99)
<ctype.h>