188 lines
5.4 KiB
C
188 lines
5.4 KiB
C
// RUN: %clang_cc1 -ffreestanding -Eonly -verify %s
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// Try different path permutations of __has_include with existing file.
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#if __has_include("stdint.h")
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#else
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#error "__has_include failed (1)."
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#endif
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#if __has_include(<stdint.h>)
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#else
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#error "__has_include failed (2)."
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#endif
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// Try unary expression.
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#if !__has_include("stdint.h")
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#error "__has_include failed (5)."
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#endif
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// Try binary expression.
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#if __has_include("stdint.h") && __has_include("stddef.h")
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#else
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#error "__has_include failed (6)."
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#endif
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// Try non-existing file.
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#if __has_include("blahblah.h")
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#error "__has_include failed (7)."
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#endif
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// Try defined.
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#if !defined(__has_include)
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#error "defined(__has_include) failed (8)."
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#endif
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// Try different path permutations of __has_include_next with existing file.
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#if __has_include_next("stddef.h") // expected-warning {{#include_next in primary source file}}
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#else
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#error "__has_include failed (1)."
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#endif
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#if __has_include_next(<stddef.h>) // expected-warning {{#include_next in primary source file}}
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#else
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#error "__has_include failed (2)."
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#endif
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// Try unary expression.
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#if !__has_include_next("stdint.h") // expected-warning {{#include_next in primary source file}}
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#error "__has_include_next failed (5)."
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#endif
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// Try binary expression.
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#if __has_include_next("stdint.h") && __has_include("stddef.h") // expected-warning {{#include_next in primary source file}}
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#else
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#error "__has_include_next failed (6)."
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#endif
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// Try non-existing file.
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#if __has_include_next("blahblah.h") // expected-warning {{#include_next in primary source file}}
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#error "__has_include_next failed (7)."
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#endif
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// Try defined.
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#if !defined(__has_include_next)
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#error "defined(__has_include_next) failed (8)."
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#endif
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// Fun with macros
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#define MACRO1 __has_include(<stdint.h>)
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#define MACRO2 ("stdint.h")
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#define MACRO3 ("blahblah.h")
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#define MACRO4 blahblah.h>)
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#define MACRO5 <stdint.h>
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#if !MACRO1
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#error "__has_include with macro failed (1)."
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#endif
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#if !__has_include MACRO2
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#error "__has_include with macro failed (2)."
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#endif
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#if __has_include MACRO3
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#error "__has_include with macro failed (3)."
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#endif
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#if __has_include(<MACRO4
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#error "__has_include with macro failed (4)."
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#endif
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#if !__has_include(MACRO5)
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#error "__has_include with macro failed (2)."
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#endif
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// Try as non-preprocessor directives
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void foo( void ) {
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__has_include_next("stdint.h") // expected-warning {{#include_next in primary source file}} expected-error {{__has_include_next must be used within a preprocessing directive}}
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__has_include("stdint.h") // expected-error {{__has_include must be used within a preprocessing directive}}
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}
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MACRO1 // expected-error {{__has_include must be used within a preprocessing directive}}
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#if 1
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MACRO1 // expected-error {{__has_include must be used within a preprocessing directive}}
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#endif
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#if 0
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#elif 1
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MACRO1 // expected-error {{__has_include must be used within a preprocessing directive}}
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#endif
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#if 0
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MACRO1 // This should be fine because it is never actually reached
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#endif
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// Try badly formed expressions.
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// FIXME: We can recover better in almost all of these cases. (PR13335)
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// expected-error@+1 {{missing '(' after '__has_include'}}
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#if __has_include "stdint.h")
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#endif
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// expected-error@+1 {{expected "FILENAME" or <FILENAME>}} expected-error@+1 {{token is not a valid binary operator in a preprocessor subexpression}}
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#if __has_include(stdint.h)
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#endif
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// expected-error@+1 {{expected "FILENAME" or <FILENAME>}}
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#if __has_include()
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#endif
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// expected-error@+1 {{missing '(' after '__has_include'}}
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#if __has_include)
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#endif
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// expected-error@+1 {{missing '(' after '__has_include'}}
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#if __has_include<stdint.h>)
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#endif
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// expected-error@+1 {{expected "FILENAME" or <FILENAME>}} expected-warning@+1 {{missing terminating '"' character}} expected-error@+1 {{invalid token at start of a preprocessor expression}}
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#if __has_include("stdint.h)
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#endif
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// expected-error@+1 {{expected "FILENAME" or <FILENAME>}} expected-warning@+1 {{missing terminating '"' character}} expected-error@+1 {{token is not a valid binary operator in a preprocessor subexpression}}
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#if __has_include(stdint.h")
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#endif
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// expected-error@+1 {{expected "FILENAME" or <FILENAME>}} expected-error@+1 {{token is not a valid binary operator in a preprocessor subexpression}}
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#if __has_include(stdint.h>)
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#endif
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// expected-error@+1 {{__has_include must be used within a preprocessing directive}}
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__has_include
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// expected-error@+1 {{missing ')' after '__has_include'}} // expected-error@+1 {{expected value in expression}} // expected-note@+1 {{to match this '('}}
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#if __has_include("stdint.h"
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#endif
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// expected-error@+1 {{expected "FILENAME" or <FILENAME>}} // expected-error@+1 {{expected value in expression}}
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#if __has_include(
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#endif
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// expected-error@+1 {{missing '(' after '__has_include'}} // expected-error@+1 {{expected value in expression}}
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#if __has_include
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#endif
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// expected-error@+1 {{missing ')' after '__has_include'}} // expected-error@+1 {{expected value in expression}} // expected-note@+1 {{to match this '('}}
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#if __has_include(<stdint.h>
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#endif
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// expected-error@+1 {{expected "FILENAME" or <FILENAME>}} // expected-error@+1 {{expected value in expression}}
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#if __has_include(<stdint.h)
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#endif
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#define HAS_INCLUDE(header) __has_include(header)
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#if HAS_INCLUDE(<stdint.h>)
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#else
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#error "__has_include failed (9)."
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#endif
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#if FOO
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#elif __has_include(<foo>)
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#endif
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// PR15539
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#ifdef FOO
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#elif __has_include(<foo>)
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#endif
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