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< c‎ | string‎ | wide

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

Strings library

Null-terminated byte strings
Null-terminated multibyte strings
Null-terminated wide strings

Null-terminated wide strings

Character classification

iswalnum (C95)
iswalpha (C95)
iswlower (C95)
iswupper (C95)
iswdigit (C95)
iswxdigit (C95)
iswblank (C99)

iswctype (C95)
iswcntrl (C95)
iswgraph (C95)
iswspace (C95)
iswprint (C95)
iswpunct (C95)
wctype (C95)

Character manipulation

towlower (C95)
towupper (C95)

wctrans (C95)
towctrans (C95)

Conversions to numeric formats

wcstolwcstoll (C95)(C99)
wcstofwcstodwcstold (C99)(C95)(C99)

wcstoulwcstoull (C95)(C99)
wcstoimaxwcstoumax (C99)(C99)

String manipulation

wcscpywcscpy_s (C95)(C11)
wcsncpywcsncpy_s (C95)(C11)
wcsxfrm (C95)

wcscatwcscat_s (C95)(C11)