50% faster seems like a good thing!

On 29 March 2012 00:47, Tito Latini  wrote:
> I have written the code to speed up the new parser.
> The current code for `corfile_puts' uses two loops, one for `strlen'
> and one for `strcat'. The new code uses only a loop for the string.
> Besides, it preserves the NUL chars to the end (like `strcat'),
> necessary for the new parser. Here is the code:
>
> void corfile_puts(char *s, CORFIL *f)
> {
>    char *c;
>    int n;
>    /* skip and count the NUL chars to the end */
>    for (n=0; f->p > 0 && f->body[f->p-1] == '\0'; n++, f->p--);
>    /* append the string */
>    for (c = s; *c != '\0'; c++) {
>      f->body[f->p++] = *c;
>      if (f->p >= f->len)
>        f->body = (char*) realloc(f->body, f->len+=100);
>    }
>    if (n > 0) {
>      /* put the extra NUL chars to the end */
>      while(--n >= 0) {
>        f->body[f->p++] = '\0';
>        if (f->p >= f->len)
>          f->body = (char*) realloc(f->body, f->len+=100);
>      }
>    }
>    f->body[f->p] = '\0';
> }
>
> It passes the extensive tests (also faster).
>
> Is it good for you?
>
> tito
>
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