C Programming/C Reference/List of C functions

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The predefined functions used in the C standard library, and a few other common functions, are listed below sorted by header file.

Standard library headers[edit]

assert.h[edit]

ctype.h[edit]

inttypes.h[edit]

locale.h[edit]

setjmp.h[edit]

signal.h[edit]

stdarg.h[edit]

stddef.h[edit]

stdlib.h[edit]

string.h[edit]

time.h[edit]

wchar.h[edit]

wctype.h[edit]

Non-standard headers[edit]

alloc.h[edit]

conio.h[edit]

netdb.h[edit]