Merge pull request #46 from SpringQL/feat/include-guard

feat: add include guard

Author: laysakura

CHANGELOG.md

@@ -13,6 +13,12 @@ Also check the changes in springql-core: <https://github.com/SpringQL/SpringQL/b
 <!-- markdownlint-disable MD024 -->
 ## [Unreleased]
 
+## [v0.13.0+2]
+
+### Added
+
+- add include guard to `springql.h`. ([#46](https://github.com/SpringQL/SpringQL-client-c/pull/46))
+
 ## [v0.13.0]
 
 ### Added

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "springql-client-c"
-version = "0.13.0"
+version = "0.13.0+2"
 
 authors = ["Sho Nakatani <lay.sakura@gmail.com>"]
 license = "MIT OR Apache-2.0"

cbindgen.toml

@@ -1,3 +1,5 @@
 language = "C"
 
 header = "// This file is part of https://github.com/SpringQL/SpringQL-client-c which is licensed under MIT OR Apache-2.0. See file LICENSE-MIT or LICENSE-APACHE for full license details."
+
+include_guard = "_SPRINGQL_H_"

springql.h

@@ -1,5 +1,8 @@
 // This file is part of https://github.com/SpringQL/SpringQL-client-c which is licensed under MIT OR Apache-2.0. See file LICENSE-MIT or LICENSE-APACHE for full license details.
 
+#ifndef _SPRINGQL_H_
+#define _SPRINGQL_H_
+
 #include <stdarg.h>
 #include <stdbool.h>
 #include <stdint.h>
@@ -360,3 +363,5 @@ int spring_last_err(enum SpringErrno *errno,
  * - `> 0`: the length of the recent error message.
  */
 int spring_last_errmsg_len(void);
+
+#endif /* _SPRINGQL_H_ */