Little question about structures...

[mfm12002]

Hello,

sorry if this seems like a trivial query but I was having some issue setting a string to a char array in a structure. I have a set up like this:


Code:

struct Computer  
{  
char Manufacturer[30];  
float Price;  
int Memory;  
} *PC;

i need to set the Manufacturer to HAL,using only the arrow operator. how can i do that?

[Epy]

PC->Manufacturer = "HAL";

http://www.velocityreviews.com/forum...-operator.html

[quzah]

You can't assign arrays with the assignment operator.


Quzah.

[jeffcobb]

strncpy(PC->Manufacturer, "HAL", 4);

[bithub]

strncpy(PC->Manufacturer, "HAL", 4);

There's no point in passing the size of the source buffer to strncpy. To avoid buffer overruns, it should actually look more like:

strncpy(PC->Manufacturer, "HAL", sizeof(PC->Manufacturer));
PC->Manufacturer[sizeof(PC->Manufacturer)-1] = '\0'; // since strncpy() isn't guaranteed to null terminate

Of course if you know that the string will fit, you can just use strcpy() instead.