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-rw-r--r--Src/exec.c4
-rw-r--r--Src/module.c35
-rw-r--r--Src/params.c1
3 files changed, 30 insertions, 10 deletions
diff --git a/Src/exec.c b/Src/exec.c
index bb4194d52..4bd6503bf 100644
--- a/Src/exec.c
+++ b/Src/exec.c
@@ -2519,6 +2519,10 @@ save_params(Estate state, Wordcode pc, LinkList *restore_p, LinkList *remove_p)
while (wc_code(ac = *pc) == WC_ASSIGN) {
s = ecrawstr(state->prog, pc + 1, NULL);
if ((pm = (Param) paramtab->getnode(paramtab, s))) {
+ if (pm->env) {
+ delenv(pm->env);
+ pm->env = NULL;
+ }
if (!(pm->flags & PM_SPECIAL)) {
paramtab->removenode(paramtab, s);
} else if (!(pm->flags & PM_READONLY) &&
diff --git a/Src/module.c b/Src/module.c
index 3a89294e5..4a4807a31 100644
--- a/Src/module.c
+++ b/Src/module.c
@@ -2039,6 +2039,19 @@ add_autoparam(char *nam, char *module)
MathFunc mathfuncs;
/**/
+static void removemathfunc(MathFunc previous, MathFunc current)
+{
+ if (previous)
+ previous->next = current->next;
+ else
+ mathfuncs = current->next;
+
+ zsfree(current->name);
+ zsfree(current->module);
+ zfree(current, sizeof(*current));
+}
+
+/**/
MathFunc
getmathfunc(char *name, int autol)
{
@@ -2049,13 +2062,7 @@ getmathfunc(char *name, int autol)
if (autol && p->module) {
char *n = dupstring(p->module);
- if (q)
- q->next = p->next;
- else
- mathfuncs = p->next;
-
- zsfree(p->module);
- zfree(p, sizeof(*p));
+ removemathfunc(q, p);
load_module(n);
@@ -2071,14 +2078,22 @@ getmathfunc(char *name, int autol)
mod_export int
addmathfunc(MathFunc f)
{
- MathFunc p;
+ MathFunc p, q = NULL;
if (f->flags & MFF_ADDED)
return 1;
- for (p = mathfuncs; p; p = p->next)
- if (!strcmp(f->name, p->name))
+ for (p = mathfuncs; p; q = p, p = p->next)
+ if (!strcmp(f->name, p->name)) {
+ if (p->module) {
+ /*
+ * Autoloadable, replace.
+ */
+ removemathfunc(q, p);
+ break;
+ }
return 1;
+ }
f->flags |= MFF_ADDED;
f->next = mathfuncs;
diff --git a/Src/params.c b/Src/params.c
index 0760146fe..d742a389e 100644
--- a/Src/params.c
+++ b/Src/params.c
@@ -2673,6 +2673,7 @@ tiedarrunsetfn(Param pm, int exp)
zfree(pm->u.data, sizeof(struct tieddata));
/* paranoia -- shouldn't need these, but in case we reuse the struct... */
pm->u.data = NULL;
+ zsfree(pm->ename);
pm->flags &= ~PM_TIED;
}