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      1 // RUN: %clang_cc1 -ffreestanding -Eonly -verify %s
      2 
      3 // Try different path permutations of __has_include with existing file.
      4 #if __has_include("stdint.h")
      5 #else
      6   #error "__has_include failed (1)."
      7 #endif
      8 
      9 #if __has_include(<stdint.h>)
     10 #else
     11   #error "__has_include failed (2)."
     12 #endif
     13 
     14 // Try unary expression.
     15 #if !__has_include("stdint.h")
     16   #error "__has_include failed (5)."
     17 #endif
     18 
     19 // Try binary expression.
     20 #if __has_include("stdint.h") && __has_include("stddef.h")
     21 #else
     22   #error "__has_include failed (6)."
     23 #endif
     24 
     25 // Try non-existing file.
     26 #if __has_include("blahblah.h")
     27   #error "__has_include failed (7)."
     28 #endif
     29 
     30 // Try defined.
     31 #if !defined(__has_include)
     32   #error "defined(__has_include) failed (8)."
     33 #endif
     34 
     35 // Try different path permutations of __has_include_next with existing file.
     36 #if __has_include_next("stddef.h") // expected-warning {{#include_next in primary source file}}
     37 #else
     38   #error "__has_include failed (1)."
     39 #endif
     40 
     41 #if __has_include_next(<stddef.h>) // expected-warning {{#include_next in primary source file}}
     42 #else
     43   #error "__has_include failed (2)."
     44 #endif
     45 
     46 // Try unary expression.
     47 #if !__has_include_next("stdint.h") // expected-warning {{#include_next in primary source file}}
     48   #error "__has_include_next failed (5)."
     49 #endif
     50 
     51 // Try binary expression.
     52 #if __has_include_next("stdint.h") && __has_include("stddef.h") // expected-warning {{#include_next in primary source file}}
     53 #else
     54   #error "__has_include_next failed (6)."
     55 #endif
     56 
     57 // Try non-existing file.
     58 #if __has_include_next("blahblah.h") // expected-warning {{#include_next in primary source file}}
     59   #error "__has_include_next failed (7)."
     60 #endif
     61 
     62 // Try defined.
     63 #if !defined(__has_include_next)
     64   #error "defined(__has_include_next) failed (8)."
     65 #endif
     66 
     67 // Try badly formed expressions.
     68 // FIXME: I don't quite know how to avoid preprocessor side effects.
     69 // Use FileCheck?
     70 // It also assert due to unterminated #if's.
     71 //#if __has_include("stdint.h"
     72 //#if __has_include "stdint.h")
     73 //#if __has_include(stdint.h)
     74 //#if __has_include()
     75 //#if __has_include(
     76 //#if __has_include)
     77 //#if __has_include
     78 //#if __has_include(<stdint.h>
     79 //#if __has_include<stdint.h>)
     80 //#if __has_include("stdint.h)
     81 //#if __has_include(stdint.h")
     82 //#if __has_include(<stdint.h)
     83 //#if __has_include(stdint.h>)
     84