[Shootout-list] nsieve OCaml Python programs not using true & false

[Dima Dorfman]

Isaac Gouy <igouy2@yahoo.com> wrote:
> > > do not use a sequence of what OCaml and Python provide as boolean
> > > values.
> > >
> > > Is that correct?
> > 
> > Correct (at least for OCaml, I didn't check Python).  But then again,
> 
> > neither does GCC, which fully supports the C99 Boolean datatype.
> 
> Oh! I only just corrected the gcc entry to use Dima Dorfman's later
> code - Dima could it use C99 Boolean instead of a char array?

Sure, just include stdbool.h and change "char a[m]" to "bool a[m]". No
other changes are necessary. It shouldn't affect the timings; gcc 3.4
defines _Bool as a char anyway (at least it does on FreeBSD).

--- nsieve.c~	Sat Dec 18 10:35:14 2004
+++ nsieve.c	Tue Feb 22 01:25:28 2005
@@ -5,6 +5,7 @@
  */
 
 #include <limits.h>
+#include <stdbool.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <stdint.h>
@@ -14,7 +15,7 @@
 nsieve(uintmax_t m)
 {
 	uintmax_t count, i, j;
-	char a[m];
+	bool a[m];
 
 	memset(a, 1, sizeof(a));
 	count = 0;