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9bfa970a40
We were injecting the function into the wrong semantic context, resulting in it failing to be registered as a global for redeclaration lookup. As a consequence, we accepted invalid code since r310616. Fixing that resulted in the "out-of-scope declaration" diagnostic firing a lot more often. It turned out that warning codepath was non-conforming, because it did not cause us to inject the implicitly-declared function into the enclosing block scope. We now only warn if the type of the out-of-scope declaration doesn't match the type of an implicitly-declared function; in all other cases, we produce the normal warning for an implicitly-declared function. llvm-svn: 314871
32 lines
1.4 KiB
C
32 lines
1.4 KiB
C
// RUN: %clang_cc1 %s -verify -fsyntax-only -Werror
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typedef int int32_t;
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typedef unsigned char Boolean;
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extern int printf(__const char *__restrict __format, ...); // expected-note{{'printf' declared here}}
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void func() {
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int32_t *vector[16];
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const char compDesc[16 + 1];
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int32_t compCount = 0;
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if (_CFCalendarDecomposeAbsoluteTimeV(compDesc, vector, compCount)) { // expected-error {{implicit declaration of function '_CFCalendarDecomposeAbsoluteTimeV' is invalid in C99}} expected-note {{previous implicit declaration}}
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}
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printg("Hello, World!\n"); // expected-error{{implicit declaration of function 'printg' is invalid in C99}} \
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// expected-note{{did you mean 'printf'?}}
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__builtin_is_les(1, 3); // expected-error{{use of unknown builtin '__builtin_is_les'}}
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}
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Boolean _CFCalendarDecomposeAbsoluteTimeV(const char *componentDesc, int32_t **vector, int32_t count) { // expected-error {{conflicting types}}
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return 0;
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}
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// Test the typo-correction callback in Sema::ImplicitlyDefineFunction
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extern int sformatf(char *str, __const char *__restrict __format, ...); // expected-note{{'sformatf' declared here}}
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void test_implicit() {
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int formats = 0;
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formatd("Hello, World!\n"); // expected-error{{implicit declaration of function 'formatd' is invalid in C99}} \
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// expected-note{{did you mean 'sformatf'?}}
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}
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