On Tuesday 14 March 2006 09:18,
manochavishal@gmail.com opined (in
<1142327881.390288.189360@p10g2000cwp.googlegroups .com>):
[color=blue]
> Hi
> I am writing a Program
> in which i get input as
>
> #C1012,S,A#C1013,S,U
>
> I want to get C1012,S,A using strtok and then pass this to function
> CreateCopies which will further strtok this (C1012,S,A) and store the
> required values.
>
> Now here is the piece of that code:
>
> #define DELIM2 #
> char * field;
> char fieldcopy[20];
>
> /*Here i have input as #C1012,S,A#C1013,S,U*/
> field = strtok(NULL,DELIM2);
> while(field != NULL)
> {
> strcpy(fieldcopy,field);
> CreateCopies(copy,fieldcopy,NoCopies);
> field = strtok(NULL,DELIM2);
> printf("Field in CreateVideo is %s\n",field);
> }
>
>
> 1.Now if I call CreateCopies the strtok doesn't tokenize till the end.
> I get to call CreateCopies only once.
> 2.But if i comment the CreateCopies call, it does tokenize till the
> end and prints the rrquired vales.
> In the first case the second time i call strtok 'field' gets a value
> of NULL instead it should get the second token.
>
> Why this behaviour???[/color]
You don't show or tell what `CreateCopies` does, but I'll bet you it
uses `strtok` as well. If it does, therein lies your problem. You're
"resetting" `strtok`. You have to finish tokenising the original string
with `strtok(NULL,...)` calls before calling `strtok` again with the
new string to parse.
--
BR, Vladimir
The average, healthy, well-adjusted adult gets up at seven-thirty in
the morning feeling just terrible.
-- Jean Kerr
