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