1*67e74705SXin Li // RUN: %clang_cc1 -fsyntax-only -triple x86_64-apple-macosx10.9.0 -verify -Wsentinel -std=c++11 %s 2*67e74705SXin Li 3*67e74705SXin Li ptrdiff_t p0; // expected-error{{unknown}} 4*67e74705SXin Li size_t s0; // expected-error{{unknown}} 5*67e74705SXin Li void* v0 = NULL; // expected-error{{undeclared}} 6*67e74705SXin Li wint_t w0; // expected-error{{unknown}} 7*67e74705SXin Li max_align_t m0; // expected-error{{unknown}} 8*67e74705SXin Li 9*67e74705SXin Li #define __need_ptrdiff_t 10*67e74705SXin Li #include <stddef.h> 11*67e74705SXin Li 12*67e74705SXin Li ptrdiff_t p1; 13*67e74705SXin Li size_t s1; // expected-error{{unknown}} 14*67e74705SXin Li void* v1 = NULL; // expected-error{{undeclared}} 15*67e74705SXin Li wint_t w1; // expected-error{{unknown}} 16*67e74705SXin Li max_align_t m1; // expected-error{{unknown}} 17*67e74705SXin Li 18*67e74705SXin Li #define __need_size_t 19*67e74705SXin Li #include <stddef.h> 20*67e74705SXin Li 21*67e74705SXin Li ptrdiff_t p2; 22*67e74705SXin Li size_t s2; 23*67e74705SXin Li void* v2 = NULL; // expected-error{{undeclared}} 24*67e74705SXin Li wint_t w2; // expected-error{{unknown}} 25*67e74705SXin Li max_align_t m2; // expected-error{{unknown}} 26*67e74705SXin Li 27*67e74705SXin Li #define __need_NULL 28*67e74705SXin Li #include <stddef.h> 29*67e74705SXin Li 30*67e74705SXin Li ptrdiff_t p3; 31*67e74705SXin Li size_t s3; 32*67e74705SXin Li void* v3 = NULL; 33*67e74705SXin Li wint_t w3; // expected-error{{unknown}} 34*67e74705SXin Li max_align_t m3; // expected-error{{unknown}} 35*67e74705SXin Li 36*67e74705SXin Li // Shouldn't bring in wint_t by default: 37*67e74705SXin Li #include <stddef.h> 38*67e74705SXin Li 39*67e74705SXin Li ptrdiff_t p4; 40*67e74705SXin Li size_t s4; 41*67e74705SXin Li void* v4 = NULL; 42*67e74705SXin Li wint_t w4; // expected-error{{unknown}} 43*67e74705SXin Li max_align_t m4; 44*67e74705SXin Li 45*67e74705SXin Li #define __need_wint_t 46*67e74705SXin Li #include <stddef.h> 47*67e74705SXin Li 48*67e74705SXin Li ptrdiff_t p5; 49*67e74705SXin Li size_t s5; 50*67e74705SXin Li void* v5 = NULL; 51*67e74705SXin Li wint_t w5; 52*67e74705SXin Li max_align_t m5; 53*67e74705SXin Li 54*67e74705SXin Li 55*67e74705SXin Li // linux/stddef.h does something like this for cpp files: 56*67e74705SXin Li #undef NULL 57*67e74705SXin Li #define NULL 0 58*67e74705SXin Li 59*67e74705SXin Li // glibc (and other) headers then define __need_NULL and rely on stddef.h 60*67e74705SXin Li // to redefine NULL to the correct value again. 61*67e74705SXin Li #define __need_NULL 62*67e74705SXin Li #include <stddef.h> 63*67e74705SXin Li 64*67e74705SXin Li // gtk headers then use __attribute__((sentinel)), which doesn't work if NULL 65*67e74705SXin Li // is 0. 66*67e74705SXin Li void f(const char* c, ...) __attribute__((sentinel)); g()67*67e74705SXin Livoid g() { 68*67e74705SXin Li f("", NULL); // Shouldn't warn. 69*67e74705SXin Li } 70