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json_object: implement json_object_deep_copy()

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Because doing `json_tokener_parse(json_object_get_string(src))`
feels sloppy, dirty, and makes me want to cry at night
sometimes.

Signed-off-by: Alexandru Ardelean <ardeleanalex@gmail.com>
This commit is contained in:
Alexandru Ardelean
2017-06-16 10:05:32 +03:00
parent 91662a5b69
commit bf80d5ad0e
2 changed files with 121 additions and 0 deletions
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18
json_object.h
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@@ -979,6 +979,24 @@ JSON_EXPORT int json_object_set_string_len(json_object* obj, const char* new_val
JSON_EXPORT int json_object_equal(struct json_object *obj1,
struct json_object *obj2);
/**
* Copy the contents of the JSON object.
* The destination object must be initialized to NULL,
* to make sure this function won't overwrite an existing JSON object.
*
* This does roughly the same thing as
* `json_tokener_parse(json_object_get_string(src))`.
*
* @param src source JSON object whose contents will be copied
* @param dst pointer to the destination object where the contents of `src`;
* make sure this pointer is initialized to NULL
*
* @returns 0 if the copy went well, -1 if an error occured during copy
* or if the destination pointer is non-NULL
*/
extern int json_object_deep_copy(struct json_object *src, struct json_object **dst);
#ifdef __cplusplus
}
#endif