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Diffstat (limited to 'libguile/boolean.c')
-rw-r--r--libguile/boolean.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/libguile/boolean.c b/libguile/boolean.c
index da56aab54..402fce55d 100644
--- a/libguile/boolean.c
+++ b/libguile/boolean.c
@@ -46,6 +46,7 @@
#include "libguile/validate.h"
#include "libguile/boolean.h"
+#include "libguile/lang.h"
@@ -54,7 +55,7 @@ SCM_DEFINE (scm_not, "not", 1, 0, 0,
"Return @code{#t} iff @var{x} is @code{#f}, else return @code{#f}.")
#define FUNC_NAME s_scm_not
{
- return SCM_BOOL(SCM_FALSEP(x));
+ return SCM_BOOL(SCM_FALSEP (x) || SCM_NILP (x));
}
#undef FUNC_NAME
@@ -64,7 +65,7 @@ SCM_DEFINE (scm_boolean_p, "boolean?", 1, 0, 0,
"Return @code{#t} iff @var{obj} is either @code{#t} or @code{#f}.")
#define FUNC_NAME s_scm_boolean_p
{
- return SCM_BOOL (SCM_BOOLP (obj));
+ return SCM_BOOL (SCM_BOOLP (obj) || SCM_NILP (obj));
}
#undef FUNC_NAME