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authorGravatar Berthold Stoeger <bstoeger@mail.tuwien.ac.at>2019-11-03 23:14:35 +0100
committerGravatar Dirk Hohndel <dirk@hohndel.org>2019-12-05 10:14:25 -0800
commitab99ca85f12b92ed55219c82ec2220aebfe1dda5 (patch)
tree6d6710368d194a97465b63cc81220b0557d68917
parentdc67876c7955b21f969545eee6f3ae3bdb550787 (diff)
downloadsubsurface-ab99ca85f12b92ed55219c82ec2220aebfe1dda5.tar.gz
Cleanup: use free_weightsystem function instead of explicit free
Instead of freeing internal data of the weightsystem structure, call the free_weightsystem function (which has to be made extern at first). This makes things more future-proof, should the weightsystem struct ever be extended. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
-rw-r--r--commands/command_edit.cpp2
-rw-r--r--core/equipment.c8
-rw-r--r--core/equipment.h1
3 files changed, 8 insertions, 3 deletions
diff --git a/commands/command_edit.cpp b/commands/command_edit.cpp
index d0d9fc087..61b2f0d7a 100644
--- a/commands/command_edit.cpp
+++ b/commands/command_edit.cpp
@@ -1031,7 +1031,7 @@ RemoveWeight::RemoveWeight(int index, bool currentDiveOnly) :
RemoveWeight::~RemoveWeight()
{
- free((void *)ws.description);
+ free_weightsystem(ws);
}
bool RemoveWeight::workToBeDone()
diff --git a/core/equipment.c b/core/equipment.c
index bd1a0b4e3..e7ac327fd 100644
--- a/core/equipment.c
+++ b/core/equipment.c
@@ -19,9 +19,13 @@
#include "subsurface-string.h"
#include "table.h"
-static void free_weightsystem(weightsystem_t w)
+/* Warning: this has strange semantics for C-code! Not the weightsystem object
+ * is freed, but the data it references. The object itself is passed in by value.
+ * This is due to the fact how the table macros work.
+ */
+void free_weightsystem(weightsystem_t ws)
{
- free((void *)w.description);
+ free((void *)ws.description);
}
static void free_cylinder(cylinder_t c)
diff --git a/core/equipment.h b/core/equipment.h
index 2711d7703..77fd9c430 100644
--- a/core/equipment.h
+++ b/core/equipment.h
@@ -70,6 +70,7 @@ struct weightsystem_table {
extern int cylinderuse_from_text(const char *text);
extern void copy_weights(const struct weightsystem_table *s, struct weightsystem_table *d);
extern weightsystem_t clone_weightsystem(weightsystem_t ws);
+extern void free_weightsystem(weightsystem_t ws);
extern void copy_cylinder_types(const struct dive *s, struct dive *d);
extern void add_cloned_weightsystem(struct weightsystem_table *t, weightsystem_t ws);
extern cylinder_t *add_empty_cylinder(struct cylinder_table *t);