[C][Concept] sizeof

#include <string.h>
#include <stdio.h>

void load_buffer(char *buffer);

int main()
{
    char buffer[100]="\0";
    printf("buffer size: %d\n", sizeof(buffer));
    load_buffer(buffer);

    return 0;
}

void load_buffer(char *buffer)
{
    printf("sizeof(buffer): %d\n", sizeof(&buffer));
}

Result

buffer size: 100
sizeof(buffer): 8

Reference:

• passing char buffer to functions and getting the size of the buffer