summaryrefslogtreecommitdiffstats
path: root/tools/clang-tidy/test/bugprone-macro-repeated-side-effects.cpp
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
commit36d22d82aa202bb199967e9512281e9a53db42c9 (patch)
tree105e8c98ddea1c1e4784a60a5a6410fa416be2de /tools/clang-tidy/test/bugprone-macro-repeated-side-effects.cpp
parentInitial commit. (diff)
downloadfirefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz
firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip
Adding upstream version 115.7.0esr.upstream/115.7.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r--tools/clang-tidy/test/bugprone-macro-repeated-side-effects.cpp28
1 files changed, 28 insertions, 0 deletions
diff --git a/tools/clang-tidy/test/bugprone-macro-repeated-side-effects.cpp b/tools/clang-tidy/test/bugprone-macro-repeated-side-effects.cpp
new file mode 100644
index 0000000000..2dedb3aca9
--- /dev/null
+++ b/tools/clang-tidy/test/bugprone-macro-repeated-side-effects.cpp
@@ -0,0 +1,28 @@
+// https://clang.llvm.org/extra/clang-tidy/checks/bugprone-macro-repeated-side-effects.html
+
+#define MACRO_WITHOUT_REPEATED_ARG(x) (x)
+#define MACRO_WITH_REPEATED_ARG(x) ((x) + (x))
+
+static int g;
+
+int function_with_side_effects(int i)
+{
+ g += i;
+ return g;
+}
+
+void test()
+{
+ int i;
+ i = MACRO_WITHOUT_REPEATED_ARG(1); // OK
+ i = MACRO_WITH_REPEATED_ARG(1); // OK
+
+ i = MACRO_WITHOUT_REPEATED_ARG(i); // OK
+ i = MACRO_WITH_REPEATED_ARG(i); // OK
+
+ i = MACRO_WITHOUT_REPEATED_ARG(function_with_side_effects(i)); // OK
+ i = MACRO_WITH_REPEATED_ARG(function_with_side_effects(i)); // NO WARNING
+
+ i = MACRO_WITHOUT_REPEATED_ARG(i++); // OK
+ i = MACRO_WITH_REPEATED_ARG(i++); // WARNING
+}