Unsigned integral type
( to be deleted later)
size_t
corresponds to the integral data type returned by the
language operator
sizeof and is
defined in the <cstring>
header file (among others) as an unsigned integral type.
In <cstring>,
it is used as the type of the parameter num in
the functions
memchr,
memcmp,
memcpy,
memmove,
memset,
strncat,
strncmp,
strncpy and
strxfrm,
which in all cases it is used to specify the maximum
number of bytes or characters the function has to
affect.
It is also used as the return type for
strcspn,
strlen,
strspn and
strxfrm
to return sizes and lengths.
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