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countof
Section: C Library Functions (3) Updated: 202-0-10 Index
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NAME
countof, _Countof - count the number of elements in an array
LIBRARY
Standard C library
( libc)
SYNOPSIS
#include <stdcountof.h>
size_t countof(array);
DESCRIPTION
This operator counts the number of elements in an array.
If the operand is not an array,
it produces a compilation error.
There's a keyword,
_Countof(),
that behaves identically,
and can be used without including
<stdcountof.h>.
RETURN VALUE
The number of elements in the array.
STANDARDS
C2y.
HISTORY
gcc 16, clang 21, gnulib 202507.
SEE ALSO
operator(7)
Index
- NAME
-
- LIBRARY
-
- SYNOPSIS
-
- DESCRIPTION
-
- RETURN VALUE
-
- STANDARDS
-
- HISTORY
-
- SEE ALSO
-
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