Re: strtok, bus error

[ben <brouits@free.fr>]

Fundu a écrit :
> i'm trying to do pretty simple replacement using strtok.
> but it looks like i have missed some subtle difference between the two following 
>   
>   char src[]  = "hello world #";
>   char *other = "hello world #";

i don't know if it is a compiler feature (storage behavior into the DATA
segment), or a linux kernel feature, or if it is specified in ANSI, but
the second way leads to pointing to a _constant_ string. If someone can
enlighten...

> because if i use "char * other" with strtok it fails with bus error but i use src it works, don't understand what's the difference.
> any insight would be appreciated, TIA!
strtok manpage says it has to _write_ into the string pointed to by its
first parameter. this is not allowed if the pointer points to a constant
string.

then,
you have to point into a string that have been created at runtime.

char* src;
src = malloc (12);
strncpy (src, "hello#world", 11);
...
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