Explanation of structures program

Question

I came across this code:

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

struct gospel
{
    int num;
    char mess1[50];
    char mess2[50];
} m1 = { 2, "If you are driven by success",
"make sure that it is a quality drive"
};

int main()
{
        struct gospel m2, m3;
        m2 = m1;
        m3 = m2;
        printf("\n%d %s %s", m1.num, m2.mess1, m3.mess2);

    return 0;
}

However I couldn't get what the line m1 =

{ 2, "If you are driven by success",
"make sure that it is a quality drive"
};

means? Can someone please explain its meaning and also the output of this program with justification.

Answer 1

struct gospel
{
    int num;
    char mess1[50];
    char mess2[50];
} m1 = { 2, "If you are driven by success",
"make sure that it is a quality drive" };

Is defining a global variable that is of type struct gospel

It is the same as writing

struct gospel
{
    int num;
    char mess1[50];
    char mess2[50];
};

struct gospel m1 = { 2, "If you are driven by success",
"make sure that it is a quality drive" };

The curly brackets assign the values of the struct to the variable by order - so m1.num is assigned the value 2, m1.mess1 is assigned the value "If you are driven by success" and m1.mess2 is assigned the value "make sure that it is a quality drive"

Would recommend reading this article if you want to learn more about this type of initialization.