Sizeof information

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...

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...

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...

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...

sizeof operator is an exception: sizeof array yields the size of the entire array (that is, 100 times the size of an int, and sizeof(array) / sizeof(int)...

= malloc( sizeof *head); head->value = ls->value; head->next = duplicate( ls->next); } Like this: if (ls != NULL) { head = malloc( sizeof *head); head->value...

giving the number of vertices provided glDrawArrays(GL_TRIANGLES, 0, sizeof(data) / sizeof(float) / 3); //Force display to be drawn now glFlush(); Vertex Shader:...

array/member access 2 !   ~   -   +   *   &   sizeof   type cast   ++   --   (most) unary operators, sizeof and type casts (right to left) 3 *   /   % MOD...

Positive: +x Negative: -x Ones' complement: ~x Logical negation: !x Sizeof: sizeof x, sizeof(type-name) Cast: (type-name) cast-expression In the Unix shell...

array of pointers: int *jagged[5]; jagged[0] = malloc(sizeof(int) * 10); jagged[1] = malloc(sizeof(int) * 3); In C++/CLI, jagged array can be created with...

fail on 64-bit machines (specifically LP64-architectures, where sizeof(void*) > sizeof(int)). This problem can be worked around by breaking up and reconstructing...

exceeding the length of the destination. strncpy(str, input, sizeof(str)); // If strlen(input) >= sizeof(str) then strncpy won't null terminate. // We counter...

object (including arrays) in the particular implementation. The operator sizeof yields a value of the type size_t. The maximum size of size_t is provided...

float x; char n[1]; }; In this example the total size of the structure sizeof(FinalPad) == 8, not 5 (so that the size is a multiple of 4 (alignof(float)))...

has no effects on hash properties though. memcpy(&k, key, sizeof(uint32_t)); key += sizeof(uint32_t); h ^= murmur_32_scramble(k); h = (h << 13) | (h >>...