On Mon, 22 Jan 2001, Richard Anderson wrote:
> NO, that is not valid C, the array size must be fixed at compile time.
GCC allows the use of variable-length automatic arrays.
For example,
FILE *
concat_fopen (char *s1, char *s2, char *mode)
{
char str[strlen (s1) + strlen (s2) + 1];
strcpy (str, s1);
strcat (str, s2);
return fopen (str, mode);
}
is valid code if you use GCC. Whether it is a good idea to
actually use this kind of C extensions is something you have
to decide by yourself.
/Mike
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