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| author | Nathaniel McCallum <npmccallum@redhat.com> | 2016-08-30 16:12:22 -0400 |
|---|---|---|
| committer | Nathaniel McCallum <npmccallum@redhat.com> | 2016-08-31 08:57:57 -0400 |
| commit | 63b9fd055248bcd427fd455ce9623431885b235e (patch) | |
| tree | d57c41eac5762d4593b8c5a2932d72b181f383e6 /src | |
| parent | ab1ba6902766615b617f1a01214f20f1ec5907e2 (diff) | |
| download | jansson-63b9fd055248bcd427fd455ce9623431885b235e.zip jansson-63b9fd055248bcd427fd455ce9623431885b235e.tar.gz jansson-63b9fd055248bcd427fd455ce9623431885b235e.tar.bz2 | |
Add support for the cleanup attribute in GCC/Clang
The new json_auto_t macro allows easy declaration of json_t types that
automatically decrement at the end of their scope.
Diffstat (limited to 'src')
| -rw-r--r-- | src/jansson.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/src/jansson.h b/src/jansson.h index 17a6e7a..b1a040a 100644 --- a/src/jansson.h +++ b/src/jansson.h @@ -112,6 +112,19 @@ void json_decref(json_t *json) json_delete(json); } +#if defined(__GNUC__) || defined(__clang__) +static JSON_INLINE +void json_decrefp(json_t **json) +{ + if(json) { + json_decref(*json); + *json = NULL; + } +} + +#define json_auto_t json_t __attribute__((cleanup(json_decrefp))) +#endif + /* error reporting */ |