18 lines
827 B
C
18 lines
827 B
C
/* RUN: %clang_cc1 -std=c89 -fsyntax-only -Wuninitialized -verify %s
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RUN: %clang_cc1 -std=c99 -fsyntax-only -Wuninitialized -verify %s
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RUN: %clang_cc1 -std=c11 -fsyntax-only -Wuninitialized -verify %s
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RUN: %clang_cc1 -std=c17 -fsyntax-only -Wuninitialized -verify %s
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RUN: %clang_cc1 -std=c2x -fsyntax-only -Wuninitialized -verify %s
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*/
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/* WG14 DR338: yes
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* C99 seems to exclude indeterminate value from being an uninitialized register
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*
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* Note, because we're relying on -Wuninitialized, this test has to live in its
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* own file. That analysis will not run if the file has other errors in it.
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*/
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int dr338(void) {
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unsigned char uc; /* expected-note {{initialize the variable 'uc' to silence this warning}} */
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return uc + 1 >= 0; /* expected-warning {{variable 'uc' is uninitialized when used here}} */
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}
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