This shuts up compiler warnings about unused functions. No such
warnings are currently triggered, but if someone were to actually use
init_NAME_with_stride() as documented, they would get a warning about
init_NAME() being unused.
While there, write a comment about why we need two declarations of the
same variable.
Signed-off-by: Thomas Rast <t...@thomasrast.ch>
---
Here's a version that has a fat comment instead of the removal.
Also, since I was rerolling anyway I put a reason why we need this.
In the original motivation I actually created more functions
afterwards, which made it more convincing, but the problem already
exists.
commit-slab.h | 24 ++++++++++++++++++------
1 file changed, 18 insertions(+), 6 deletions(-)
diff --git a/commit-slab.h b/commit-slab.h
index d77aaea..21d54f1 100644
--- a/commit-slab.h
+++ b/commit-slab.h
@@ -45,8 +45,8 @@ struct slabname {
\
}; \
static int stat_ ##slabname## realloc; \
\
-static void init_ ##slabname## _with_stride(struct slabname *s,
\
- unsigned stride) \
+static inline void init_ ##slabname## _with_stride(struct slabname *s, \
+ unsigned stride) \
{ \
unsigned int elem_size; \
if (!stride) \
@@ -58,12 +58,12 @@ struct slabname {
\
s->slab = NULL; \
} \
\
-static void init_ ##slabname(struct slabname *s) \
+static inline void init_ ##slabname(struct slabname *s)
\
{ \
init_ ##slabname## _with_stride(s, 1); \
} \
\
-static void clear_ ##slabname(struct slabname *s) \
+static inline void clear_ ##slabname(struct slabname *s) \
{ \
int i; \
for (i = 0; i < s->slab_count; i++) \
@@ -73,8 +73,8 @@ struct slabname {
\
s->slab = NULL; \
} \
\
-static elemtype *slabname## _at(struct slabname *s, \
- const struct commit *c) \
+static inline elemtype *slabname## _at(struct slabname *s, \
+ const struct commit *c) \
{ \
int nth_slab, nth_slot; \
\
@@ -98,4 +98,16 @@ struct slabname {
\
\
static int stat_ ##slabname## realloc
+/*
+ * Note that this seemingly redundant second declaration is required
+ * to allow a terminating semicolon, which makes instantiations look
+ * like function declarations. I.e., the expansion of
+ *
+ * define_commit_slab(indegree, int);
+ *
+ * ends in 'static int stat_indegreerealloc;'. This would otherwise
+ * be a syntax error according (at least) to ISO C. It's hard to
+ * catch because GCC silently parses it by default.
+ */
+
#endif /* COMMIT_SLAB_H */
--
1.8.5.rc2.355.g6969a19
--
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