fix the explanation of the returned value

otegami · otegami · commit 4027422ae043 · 2025-03-11T14:56:06.000+09:00
diff --git a/include/groonga/cache.h b/include/groonga/cache.h
@@ -103,8 +103,9 @@ grn_cache_current_set(grn_ctx *ctx, grn_cache *cache);
  *
  * \param ctx The context object.
  *
- * \return The \ref grn_cache object used in the select command on success,
- *         `NULL` on error.
+ * \return The \ref grn_cache object is associated with the database in the
+ *         select command context. If there is no specific cache, it returns
+ *         the current cache which might be NULL.
  */
 GRN_API grn_cache *
 grn_cache_current_get(grn_ctx *ctx);

Original file line number	Diff line number	Diff line change
`@@ -103,8 +103,9 @@ grn_cache_current_set(grn_ctx ctx, grn_cache cache);`
`103`	`103`	`*`
`104`	`104`	`* \param ctx The context object.`
`105`	`105`	`*`
`106`		`- * \return The \ref grn_cache object used in the select command on success,`
`107`		- * `NULL` on error.
	`106`	`+ * \return The \ref grn_cache object is associated with the database in the`
	`107`	`+ * select command context. If there is no specific cache, it returns`
	`108`	`+ * the current cache which might be NULL.`
`108`	`109`	`*/`
`109`	`110`	`GRN_API grn_cache *`
`110`	`111`	`grn_cache_current_get(grn_ctx *ctx);`