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NAME
ptrdiff_t - count of elements or array index
LIBRARY
Standard C library (libc)
SYNOPSIS
bash
#include <stddef.h>bash
typedef\n /* ... */ \nptrdiff_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 storing values in the range [PTRDIFF_MIN, 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 printing ptrdiff_t values.
STANDARDS
C11, POSIX.1-2008.
HISTORY
C89, POSIX.1-2001.
SEE ALSO
size_t(3type)