1 // RUN: %clang_cc1 %s -verify -Wconversion
2 
3 #define P(X) _Pragma(#X)
4 #define V(X) X
5 
6 #define X \
7   P(clang diagnostic push) \
8   P(clang diagnostic ignored "-Wconversion") \
9   ) = 1.2; \
10   P(clang diagnostic pop)
11 
12 void f() {
13   int a = 1.2; // expected-warning {{changes value}}
14 
15   // Note, we intentionally enter a tentatively-parsed context here to trigger
16   // regular use of lookahead. This would go wrong if _Pragma checking in macro
17   // argument pre-expansion also tries to use token lookahead.
18   int (b
19   V(X)
20 
21   int c = 1.2; // expected-warning {{changes value}}
22 }
23