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cstructvolatile

In C, how do you declare the members of a structure as volatile?

How do you declare a particular member of a struct as volatile?

Solution

  • Exactly the same as non-struct fields:

    #include <stdio.h>
int main (int c, char *v[]) {
    struct _a {
        int a1;
        volatile int a2;
        int a3;
    } a;
    a.a1 = 1;
    a.a2 = 2;
    a.a3 = 3;
    return 0;
}

    You can mark the entire struct as volatile by using "volatile struct _a {...}" but the method above is for individual fields.