================
@@ -0,0 +1,16 @@
+// RUN: %check_clang_tidy %s bugprone-sprintf-to-snprintf %t
+
+extern "C" int sprintf(char *str, const char *format, ...);
+extern "C" int snprintf(char *s, unsigned long n, const char *format, ...);
+
+void f() {
+ char buff[80];
+ sprintf(buff, "Hello, %s!\n", "world");
+ // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: use 'snprintf' instead of
'sprintf' for fixed-size character arrays [bugprone-sprintf-to-snprintf]
+ // CHECK-FIXES: snprintf(buff, sizeof(buff), "Hello, %s!\n", "world");
+}
+
+void ignore_pointers(char* ptr) {
+ sprintf(ptr, "Hello");
+ // Should not trigger because it's not a fixed-size array.
+}
----------------
zeyi2 wrote:
Please add newline at EOF
https://github.com/llvm/llvm-project/pull/182823
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