pw_preprocessor: Introduce PW_MODIFY_DIAGNOSTIC_CLANG

Complements PW_MODIFY_DIAGNOSTIC_GCC. Fixes: b/356935569 Change-Id: I1c282ecc65c9fd0ecb88c280a31e22ed6519c82b Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/231332 Presubmit-Verified: CQ Bot Account <[email protected]> Lint: Lint 🤖 <[email protected]> Commit-Queue: Wyatt Hepler <[email protected]> Pigweed-Auto-Submit: Wyatt Hepler <[email protected]> Reviewed-by: Dave Roth <[email protected]>
google · Aug 21, 2024 · ea78a58 · ea78a58
1 parent a759e7d
commit ea78a58
Showing 1 changed file with 9 additions and 0 deletions.
diff --git a/pw_preprocessor/public/pw_preprocessor/compiler.h b/pw_preprocessor/public/pw_preprocessor/compiler.h
@@ -209,6 +209,15 @@
   PW_MODIFY_DIAGNOSTIC(kind, option)
 #endif  // __clang__
 
+/// Applies ``PW_MODIFY_DIAGNOSTIC`` only for Clang. This is useful for warnings
+/// that aren't supported by or don't need to be changed in other compilers.
+#ifdef __clang__
+#define PW_MODIFY_DIAGNOSTIC_CLANG(kind, option) \
+  PW_MODIFY_DIAGNOSTIC(kind, option)
+#else
+#define PW_MODIFY_DIAGNOSTIC_CLANG(kind, option) _PW_REQUIRE_SEMICOLON
+#endif  // __clang__
+
 /// Expands to a `_Pragma` with the contents as a string. `_Pragma` must take a
 /// single string literal; this can be used to construct a `_Pragma` argument.
 #define PW_PRAGMA(contents) _Pragma(#contents)