structures help

[askcq]

typedef struct subStruct {
int value;
}SubStruct;
 
typedef struct mainStruct {
SubStruct sarray[10];
int val;
}MainStruct;
 
int main () {
MainStruct* pMainStruct;
pMainStruct->sarray[1].value=10;
 
printf(" value is %d",pMainStruct->sarray[1].value);
return 0;
 
}

the value is geting printed ....the program has no errors ....but
insteead some exception is shown

[svlsr2000]

typedef struct subStruct {
int value;
}SubStruct;

typedef struct mainStruct {
SubStruct sarray[10];
int val;
}MainStruct;

int main () {
MainStruct* pMainStruct;
pMainStruct->sarray[1].value=10;

printf(" value is %d",pMainStruct->sarray[1].value);
return 0;

}

the value is geting printed ....the program has no errors ....but
insteead some exception is shown

you have to intialize pMainStruct with valid address.

[askcq]

thanks ,...
solved now...