Linked Questions

I bumped into this strange macro code in /usr/include/linux/kernel.h: /* Force a compilation error if condition is true, but also produce a result (of value 0 and type size_t), so the expression ...

The standard array-size macro that is often taught is #define ARRAYSIZE(arr) (sizeof(arr) / sizeof(arr[0])) or some equivalent formation. However, this kind of thing silently succeeds when a pointer ...

char* names[]={"A", "B", "C"}; Is there a way to find the number of strings in the array? For example, in this case it should output: 3.

How to find the size of an integer array in C. Any method available without traversing the whole array once, to find out the size of the array.

#include "stdafx.h" #include <windows.h> #include <stdio.h> #include <iostream> #include <dos.h> using namespace std; class Dir { public: char* cat; Dir() { ...

I have a char* array as follows: char *tbl[] = { "1", "2", "3" }; How do I use the sizeof operator to get the number of elements of the array, here 3? The below did work, but is it correct? int n =...

I am currently trying to get the length of a dynamically generated array. It is an array of structs: typedef struct _my_data_ { unsigned int id; double latitude; double longitude; unsigned ...

I want to write a array containing 16bit integers as raw binary to a file and have tried with the following example: # define __int8_t_defined __intN_t (8, __QI__); __intN_t (16, __HI__); __intN_t (...

#include <iostream> using namespace std; int main() { int arr[5] = {5, 8, 1, 3, 6}; int len = *(&arr + 1) - arr; cout << "The length of the array is: " << len; ...

Is there any way I could find how much bytes are allocated for RandomArray in this code #include<stdio.h> #include<stdlib.h> int main() { int *RandomArray; int n; ...

I (think I) understand that you can only retrieve the size of an array (using sizeof) if it is declared at compile time on the stack, e.g. int my_array[] = {1,2,3}; sizeof(my_array) == 3; As soon as ...

i run the following code but it kept printing "4" why its printing "4" and not "12"? and can I use malloc and then sizeof?(if i can then how) #include<stdio.h> int main() { int arr1[3]={1,...

I have a function, where I use a array of constants: void function(int Id){ int array1[4] = {4 constants}; int array2[4] = {4 constants}; for(int i=0; i<4; i++){ //accessing the array 1&...

I'm not really versed in C++, but I came to the following code: BaseManager* allManagers[] = { mColorManager, mToolManager, mLayerManager, mPlaybackManager, mViewManager }; for ( ...

I am trying to input the rooms, sort them by price and create a text file afterward but there is always an error which I suspect has to do with the sizeof function In some compilers, it will compile ...