separate out sdk_info for easier access in C++

Author: Wumpf

rerun_cpp/src/rerun/c/rerun.h

@@ -0,0 +1,14 @@
+/// Returns the version of the Rerun C SDK.
+///
+/// This should match the string returned by `rr_version_string` (C) or `rerun::version_string` (C++).
+/// If not, the SDK's binary and the C header are out of sync.
+#define RERUN_SDK_HEADER_VERSION "0.18.0-alpha.1"
+
+/// Major version of the Rerun C SDK.
+#define RERUN_SDK_HEADER_VERSION_MAJOR 0
+
+/// Minor version of the Rerun C SDK.
+#define RERUN_SDK_HEADER_VERSION_MINOR 18
+
+/// Patch version of the Rerun C SDK.
+#define RERUN_SDK_HEADER_VERSION_PATCH 0

rerun_cpp/src/rerun/c/sdk_info.h

@@ -1,10 +1,14 @@
 // General information about the SDK.
 #pragma once
 
+#include "c/sdk_info.h"
 #include "error.hpp"
 
 namespace rerun {
-    /// The Rerun C++ SDK version as a human-readable string.
+    /// Returns a human-readable version string of the Rerun C SDK.
+    ///
+    /// This should match the string in `RERUN_SDK_HEADER_VERSION`.
+    /// If not, the SDK's binary and the C++ headers are out of sync.
     const char* version_string();
 
     /// Internal check whether the version reported by the rerun_c binary matches `sdk_version_string`.

rerun_cpp/src/rerun/sdk_info.hpp

@@ -7,9 +7,11 @@
 - Python
     - `rerun.__version__`
     - `rerun.__version_info__`
-- C
+- C/C++
     - `#define RERUN_SDK_HEADER_VERSION`
-    - `#define RERUN_SDK_HEADER_VERSION_INFO`
+    - `#define RERUN_SDK_HEADER_VERSION_MAJOR`
+    - `#define RERUN_SDK_HEADER_VERSION_MINOR`
+    - `#define RERUN_SDK_HEADER_VERSION_PATCH`
 """
 
 from __future__ import annotations
@@ -107,7 +109,7 @@ def main() -> None:
 
     sem_version = semver.VersionInfo.parse(args.VERSION)
     set_rerun_py_version(project_path / "rerun_py" / "rerun_sdk" / "rerun" / "__init__.py", sem_version)
-    set_rerun_c_version(project_path / "rerun_cpp" / "src" / "rerun" / "c" / "rerun.h", sem_version)
+    set_rerun_c_version(project_path / "rerun_cpp" / "src" / "rerun" / "c" / "sdk_info.h", sem_version)
 
 
 if __name__ == "__main__":