-
sizeof is a
unary operator in the
programming languages C and C++. It
generates the
storage size of an
expression or a data type,
measured in the number...
-
expression cannot be the
operand of
sizeof. Therefore,
sizeof (int) * x is
interpreted as (
sizeof(int)) * x and not
sizeof ((int) * x). The
precedence table...
-
padding as part of the
array itself. It is
common to
allocate sizeof(struct) + array_len*
sizeof(array element) bytes. This is not wrong, but it may allocate...
- memset(&sa, 0,
sizeof sa); sa.sin_family = AF_INET; sa.sin_addr.s_addr = htonl(INADDR_ANY); sa.sin_port = htons(7654);
fromlen =
sizeof sa; sock = socket(PF_INET...
- "no" are
guaranteed to have
different sizes, //
specifically sizeof(yes) == 1 and
sizeof(no) == 2.
typedef char yes[1];
typedef char no[2];
template <typename...
- *s) { char buf[15]; memset(buf, 0,
sizeof(buf)); strncat(buf, s,
sizeof(buf)); //
Final parameter should be:
sizeof(buf)-1 } Off-by-one
errors are common...
- = malloc(
sizeof *head); head->value = ls->value; head->next = duplicate( ls->next); } Like this: if (ls != NULL) { head = malloc(
sizeof *head); head->value...
- we can use realloc. int *arr = malloc(2 *
sizeof(int)); arr[0] = 1; arr[1] = 2; arr = realloc(arr, 3 *
sizeof(int)); arr[2] = 3; Note that
realloc must...
- of an
array A, as in n =
sizeof A[0]. Thus, the
number of
elements in a
declared array A can be
determined as
sizeof A /
sizeof A[0]. Note, that if only...
- array/member
access 2 ! ~ - + * &
sizeof type cast ++ -- (most)
unary operators,
sizeof and type
casts (right to left) 3 * / % MOD...
