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