1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 | #include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#include <assert.h>
int main(int argc, char* argv[]) {
char* words[] = { "from", "Jack", "McBrearty", "to", "everyone" };
// Each element of words is a char*. Ex: words[0] is a char*.
// `whatis words` would return char*[5].
// sizeof(words) == sizeof(char*[5]) ==> 5 * 8 => 40
// sizeof(words) == 5 * sizeof(char*) ==> 5 * 8 ==> 40
// sizeof(*words) ==> sizeof(words[0]) ==> sizeof(char*) ==> 8
size_t num_words = sizeof(words) / sizeof(*words);
// This works only on arrays declared with square brackets.
printf("sizeof(words) == %zd\n", sizeof(words));
printf("sizeof(*words) == %zd\n", sizeof(*words));
printf("num_words == %zd\n", num_words);
return EXIT_SUCCESS;
}
/* vim: set tabstop=4 shiftwidth=4 fileencoding=utf-8 noexpandtab: */
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