Thread: Problem about struct

i have no clue what ya mean...
you technically can't assign structs to NULL without them being a pointer or acessing a member variable.

but if your saying you want the values of the structs members to start with NULL then its simple.

Code:

#include <memory.h> // header for memset()

typedef struct 
{
    int i;
    float f;
    char c;
}mystruct;

int main(void)
{
    mystruct str;
    memset(&str,NULL,sizeof(mystruct));
    printf("i:%d\nf:%f\nc:%c\n",str.i,str.f,str.c);
    return 0;
}

Well you can initialise all members of a structure to zeros (of the correct type) like this

mystruct str = { 0 };