зеркало из https://github.com/microsoft/clang-1.git
25 строки
1.1 KiB
C
25 строки
1.1 KiB
C
// RUN: %clang_cc1 -Wparentheses -fsyntax-only -verify %s
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// RUN: %clang_cc1 -Wparentheses -fixit %s -o - | %clang_cc1 -Wparentheses -Werror -
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// Test the various warnings under -Wparentheses
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void if_assign(void) {
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int i;
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if (i = 4) {} // expected-warning {{assignment as a condition}} \
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// expected-note{{use '==' to turn this assignment into an equality comparison}}
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if ((i = 4)) {}
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}
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void bitwise_rel(unsigned i) {
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(void)(i & 0x2 == 0); // expected-warning {{& has lower precedence than ==}} \
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// expected-note{{place parentheses around the & expression to evaluate it first}}
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(void)(0 == i & 0x2); // expected-warning {{& has lower precedence than ==}} \
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// expected-note{{place parentheses around the & expression to evaluate it first}}
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(void)(i & 0xff < 30); // expected-warning {{& has lower precedence than <}} \
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// expected-note{{place parentheses around the & expression to evaluate it first}}
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(void)((i & 0x2) == 0);
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(void)(i & (0x2 == 0));
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// Eager logical op
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(void)(i == 1 | i == 2 | i == 3);
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(void)(i != 1 & i != 2 & i != 3);
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}
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