Help me with CCS string in PIC C Compiler

CCS String Compare

How can I make something like this in
CCS PIC C Compiler?

char str1[10];


switch(str1) {
case "abcd" : dosomething...;
case "efgh" : dosomethingelse;
}

or
if (str1=="abcd") { dosomething }

!!
strcmp(str1,str2) does not work with constants
like "abcd".
!!

how can i make it with a memory effective method?

regards.

Does the switch statement work?
I only used it with integers (but hey, they're just a number of bytes like a char array ;-) )

Does the compare work? Did you or one of the libraries overload the == operator so you can compare char arrays?

most of the time i just use memcmp(string1, string2, nrofchars);
it returns 0 it strings are equal and an other number when they aren't
(it's also usefull to sort alfabetically i guess ;-) )
just look for information on the net. It's a standard library function.

what do you mean with memory effective?
do you mean the fasted method or the one that compiles to the smallest code. (perhaps you should try a few methods since it can be compiler dependant)
When you realy have to have small and fast code, write it in assembly and link against it.

Re: CCS String Compare

Sobakava said:

How can I make something like this in
CCS PIC C Compiler?

char str1[10];


switch(str1) {
case "abcd" : dosomething...;
case "efgh" : dosomethingelse;
}

or
if (str1=="abcd") { dosomething }

...
regards.

Click to expand...

note that when you're doing like this you compare only pointers (not data in string). I've never used CCS PIC C Compiler but programmed much in C including microcontrollers, and I think there shuld be some library like string.h or similar with comparing function. If not - write such function by your own!