constant-builtins.c revision 46cfefa8a4e486ee6a9b8960f232237bf7a4b1f9 
1// RUN: clang -fsyntax-only %s -verify -pedantic
2
3// Math stuff
4
5float        g0 = __builtin_huge_val();
6double       g1 = __builtin_huge_valf();
7long double  g2 = __builtin_huge_vall();
8float        g3 = __builtin_inf();
9double       g4 = __builtin_inff();
10long double  g5 = __builtin_infl();
11
12// GCC misc stuff
13
14extern int f();
15
16int h0 = __builtin_types_compatible_p(int,float); // expected-warning {{extension}}
17//int h1 = __builtin_choose_expr(1, 10, f());
18//int h2 = __builtin_expect(0, 0);
19
20short somefunc();
21
22short t = __builtin_constant_p(5353) ? 42 : somefunc(); // expected-warning {{expression is not a constant, but is accepted as one by GNU extensions}}
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24