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-rw-r--r--libguile/gc.c13
1 files changed, 5 insertions, 8 deletions
diff --git a/libguile/gc.c b/libguile/gc.c
index 3ae978fc0..c68f295b1 100644
--- a/libguile/gc.c
+++ b/libguile/gc.c
@@ -739,13 +739,7 @@ accumulate_gc_timer (void * hook_data SCM_UNUSED,
char const *
scm_i_tag_name (scm_t_bits tag)
{
- if (tag >= 255)
- {
- int k = 0xff & (tag >> 8);
- return (scm_smobs[k].name);
- }
-
- switch (tag) /* 7 bits */
+ switch (tag & 0x7f) /* 7 bits */
{
case scm_tcs_struct:
return "struct";
@@ -806,7 +800,10 @@ scm_i_tag_name (scm_t_bits tag)
return "port";
break;
case scm_tc7_smob:
- return "smob"; /* should not occur. */
+ {
+ int k = 0xff & (tag >> 8);
+ return (scm_smobs[k].name);
+ }
break;
}