MESSAGE
| DATE | 2004-04-22 |
| FROM | Ruben Safir Secretary NYLXS
|
| SUBJECT | Re: [hangout] Debugging cdparanoia in C
|
sizeof also works with structs and arrays.
(a string is an array of chars)
1 #include
2 #include
3
4 int main(int argc,char **argv ){
5 char buffer[] = "My Dog Has Fleas!";
6 char * buf2;
7 int size = 0;
8 size = sizeof(buffer);
9 printf("Size of Buffer is %i\n", size);
10 printf("Buffer is %s\n", buffer);
11 buf2 = (char*)malloc(255);
12 size = sizeof(buf2);
13 printf("Size of Buffer is %i\n", size);
14 strncpy(buf2, buffer, 5);
15 size = sizeof(buf2);
16 printf("Size of Buffer is %i\n", size);
17 printf("Buffer is %s\n", buf2);
18 exit(1);
19 }
./a.out
Size of Buffer is 18
Buffer is My Dog Has Fleas!
Size of Buffer is 4
Size of Buffer is 4
Buffer is My Do
The puzzle here is that sizeof seems to not work with the char pointer.
I'm not happy about that. I wonder how it behaves with strings passed as
params. It probibly doesn't.
Ruben
>
> sizeof(s) ==> sizeof(char*) ==> 4.
--
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