returning a struct pointer

[nano2]

Hi,

Have the following scenario in C. returning a copy of the structure which is not good should be passing back a structure pointer

How would i acahieve this .
any ideas..




int main(){

ret = fn(b);

}

retSt fn( char *p)
{
st result ;

fnb(&result);

return st;

}

[Ganon11]

It's very easy. Suppose your struct is named myStruct. Suppose further that your structure returning function is called structFunc(). Then your code would look like this:

struct myStruct {
    int sampleValue;
    string sampleName;
    double sampleValue2
};
 
myStruct* structFunc() { // Return type is a pointer to your struct
    myStruct *structPtr;
    structPtr = new myStruct;
 
    structPtr->sampleValue = 10;
    structPtr->sampleValue2 = 99.2;
    structPtr->sampleName = "My Struct";
 
    return structPtr; // Returns the pointer
}

[r035198x]

Hi,

Have the following scenario in C. returning a copy of the structure which is not good should be passing back a structure pointer

How would i acahieve this .
any ideas..




int main(){

ret = fn(b);

}

retSt fn( char *p)
{
st result ;

fnb(&result);

return st;

}

You should practice this thoroughly (revisit the tutorials if neccessary) It is going to be relevant to all the code you are going to write.