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22 lines
567 B
22 lines
567 B
4 months ago
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// RUN: %clang_cc1 -fsyntax-only -verify %s
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// C++ [basic.def.odr]p1:
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// No translation unit shall contain more than one definition of any
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// variable, [...].
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// Bad: in C++, these are both definitions. None of that C99 tentative stuff.
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int i; // expected-note {{previous}}
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int i; // expected-error {{redefinition}}
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// OK: decl + def
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extern int j;
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int j;
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// OK: def + decl
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int k;
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extern int k;
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// Bad. The important thing here is that we don't emit the diagnostic twice.
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int l = 1; // expected-note {{previous}}
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int l = 2; // expected-error {{redefinition}}
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