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-rw-r--r--libguile/list.c17
1 files changed, 10 insertions, 7 deletions
diff --git a/libguile/list.c b/libguile/list.c
index 8297b17c5..627640334 100644
--- a/libguile/list.c
+++ b/libguile/list.c
@@ -267,7 +267,7 @@ SCM_DEFINE (scm_append, "append", 0, 0, 1,
SCM_DEFINE (scm_append_x, "append!", 0, 0, 1,
- (SCM lists),
+ (SCM args),
"A destructive version of @code{append} (@pxref{Pairs and\n"
"Lists,,,r5rs, The Revised^5 Report on Scheme}). The cdr field\n"
"of each list's final pair is changed to point to the head of\n"
@@ -276,26 +276,29 @@ SCM_DEFINE (scm_append_x, "append!", 0, 0, 1,
#define FUNC_NAME s_scm_append_x
{
SCM ret, *loc;
- SCM_VALIDATE_REST_ARGUMENT (lists);
+ int argnum = 1;
+ SCM_VALIDATE_REST_ARGUMENT (args);
- if (scm_is_null (lists))
+ if (scm_is_null (args))
return SCM_EOL;
loc = &ret;
for (;;)
{
- SCM arg = SCM_CAR (lists);
+ SCM arg = SCM_CAR (args);
*loc = arg;
- lists = SCM_CDR (lists);
- if (scm_is_null (lists))
+ args = SCM_CDR (args);
+ if (scm_is_null (args))
return ret;
if (!SCM_NULL_OR_NIL_P (arg))
{
- SCM_VALIDATE_CONS (SCM_ARG1, arg);
+ SCM_VALIDATE_CONS (argnum, arg);
loc = SCM_CDRLOC (scm_last_pair (arg));
+ SCM_VALIDATE_NULL_OR_NIL (argnum, *loc);
}
+ argnum++;
}
}
#undef FUNC_NAME