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      1 // RUN: %clang_cc1 -analyze -analyzer-checker=unix.cstring.BadSizeArg -analyzer-store=region -verify %s
      2 // expected-no-diagnostics
      3 
      4 // Ensure we don't crash on C++ declarations with special names.
      5 struct X {
      6   X(int i): i(i) {}
      7   int i;
      8 };
      9 
     10 X operator+(X a, X b) {
     11   return X(a.i + b.i);
     12 }
     13 
     14 void test(X a, X b) {
     15   X c = a + b;
     16 }
     17 
     18 // Ensure we don't crash on custom-defined strncat.
     19 char strncat ();
     20 int main () {
     21   return strncat ();
     22 }