ptrdiff_t(3type) ptrdiff_t(3type)
NAME
ptrdiff_t - count of elements or array index
LIBRARY
Standard C library (libc)
SYNOPSIS
#include <stddef.h>
typedef /* ... */ ptrdiff_t;
DESCRIPTION
Used for a count of elements, or an array index. It is the result of
subtracting two pointers. It is a signed integer type capable of stor-
ing values in the range [PTRDIFF_MAX, PTRDIFF_MAX].
The length modifier for ptrdiff_t for the printf(3) and the scanf(3)
families of functions is t, resulting commonly in %td or %ti for print-
ing ptrdiff_t values.
STANDARDS
C99 and later; POSIX.1-2001 and later.
SEE ALSO
size_t(3type)
Linux man-pages 6.03 2022-10-30 ptrdiff_t(3type)
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