Passing char arrays to a function - best practice

Projects Programming
12

PGTBOOS:
please try to adjust your sendmsg function like this, i believe it should work.

void SendMsg(char * myMsg)    // << points to your array and that should be enough, a basic c++ method

{
 char MsgAndTime[strlen(myMsg) + 10];  
 strcpy(MsgAndTime, myMsg);  
 strcat(MsgAndTime, " 1:00 PM");
 Serial.println(MsgAndTime);
}




notice only the main calling method is changed the way you would if calling for an array function variable.
if it doesnt work then arduino isnt c++ compliant but i dont doubt it wouldnt work like this.

That was pretty much my plan B. But I was going to use (no pointer like in your example ):

void SendMsg(char myMsg)

I have a hard time grasping pointers. I understand how they work, but it's much less intuitive and harder to understand for me. I thought when you passed an array to a function, C always passes it as pointer. Is that right? So what's the difference between these two functions:

void SendMsg(char   myMsg)
void SendMsg(char * myMsg)