🚀 go-pugleaf

M.Wang (xiaofei@lucent.com) wrote:
: what is wrong with the following program?

: #include <stdio.h>
: #include <string.h>

: int
: main()
: {
: strtok("a b c", " ");
: return 0;
: }

: It generate the following error message: 

: (15:48)(/home/mwang/c)gcc 1.c
: (15:48)(/home/mwang/c)./a.out
: Memory fault(coredump)

: Thanks

well "a b c" is a __string constant__ i.e non-writable
strtok() will try to shove a null('\0') after the 'a'
hence the coredump

try this instead
.
main()
{
  char string[10] = "a b c";

  strtok(string, " ");
  return 0;
}

string is not a __string constant__ but an array of
10 chars.
If you have difficulties with string in C. The
C FAQ is ...priceless even for old timer who
sometimes get burn ;-)

--
bonne anne'e, alain