forked from OSchip/llvm-project
63 lines
2.4 KiB
C
63 lines
2.4 KiB
C
// RUN: %clang_cc1 -fsyntax-only -verify %s
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#if defined(INCLUDE)
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// -------
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// This section acts like a header file.
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// -------
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// Check the use of static variables in non-static inline functions.
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static int staticVar; // expected-note + {{'staticVar' declared here}}
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static int staticFunction(); // expected-note + {{'staticFunction' declared here}}
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inline int useStatic () { // expected-note 2 {{use 'static' to give inline function 'useStatic' internal linkage}}
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staticFunction(); // expected-warning{{function 'staticFunction' has internal linkage but is used in an inline function with external linkage}}
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return staticVar; // expected-warning{{variable 'staticVar' has internal linkage but is used in an inline function with external linkage}}
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}
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extern inline int useStaticFromExtern () { // no suggestions
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staticFunction(); // expected-warning{{function 'staticFunction' has internal linkage but is used in an inline function with external linkage}}
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return staticVar; // expected-warning{{variable 'staticVar' has internal linkage but is used in an inline function with external linkage}}
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}
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static inline int useStaticFromStatic () {
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staticFunction(); // no-warning
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return staticVar; // no-warning
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}
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#else
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// -------
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// This is the main source file.
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// -------
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#define INCLUDE
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#include "inline.c"
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// Check that we don't allow illegal uses of inline
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inline int a; // expected-error{{'inline' can only appear on functions}}
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typedef inline int b; // expected-error{{'inline' can only appear on functions}}
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int d(inline int a); // expected-error{{'inline' can only appear on functions}}
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// Check that the warnings from the "header file" aren't on by default in
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// the main source file.
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inline int useStaticMain () {
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staticFunction(); // no-warning
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return staticVar; // no-warning
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}
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// Check that the warnings show up when explicitly requested.
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#pragma clang diagnostic push
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#pragma clang diagnostic warning "-Winternal-linkage-in-inline"
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inline int useStaticAgain () { // expected-note 2 {{use 'static' to give inline function 'useStaticAgain' internal linkage}}
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staticFunction(); // expected-warning{{function 'staticFunction' has internal linkage but is used in an inline function with external linkage}}
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return staticVar; // expected-warning{{variable 'staticVar' has internal linkage but is used in an inline function with external linkage}}
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}
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#pragma clang diagnostic pop
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#endif
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