How To Know The Array Length In C Code Example

Example 1: size of an array c

int a[20]; int length; length = sizeof(a) / sizeof(int);

Example 2: array length c

int prices[5] = { 1, 2, 3, 4, 5 };  int size = sizeof prices / sizeof prices[0];  printf("%u", size); /* 5 */

Example 3: get length of array in c

int a[17]; size_t n = sizeof(a)/sizeof(a[0]);