[C] Add a dummy source to check compliance.

Since the tests are still C++ sources, the C headers are compiled with a C++ compiler. This makes it difficult to notice breaking C compatibility.

Author: denizevrenci

sbe-tool/src/test/c/CComplianceTest.c

@@ -0,0 +1,10 @@
+#include <code_generation_test/car.h>
+#include <code_generation_test/messageHeader.h>
+
+#include <group_with_data/testMessage1.h>
+#include <group_with_data/testMessage2.h>
+#include <group_with_data/testMessage3.h>
+#include <group_with_data/testMessage4.h>
+
+int main() {
+}

sbe-tool/src/test/c/CMakeLists.txt

@@ -55,3 +55,12 @@ add_custom_target(c_codecs DEPENDS ${GENERATED_CODECS})
 sbe_test(BoundsCheckTest c_codecs)
 sbe_test(CodeGenTest c_codecs)
 sbe_test(GroupWithDataTest c_codecs)
+
+# Compile a dummy C source to test C compliance of generated headers.
+add_executable(CComplianceTest CComplianceTest.c)
+
+target_include_directories(CComplianceTest
+ PRIVATE ${C_CODEC_TARGET_DIR}
+)
+
+add_dependencies(CComplianceTest c_codecs)