forked from OSchip/llvm-project
33 lines
1.2 KiB
C
33 lines
1.2 KiB
C
// RUN: %clang_analyze_cc1 -analyzer-checker=core,debug.ExprInspection -verify %s
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int x = 1;
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struct {
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int a, b;
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} s = {2, 3};
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int arr[] = {4, 5, 6};
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void clang_analyzer_eval(int);
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int main() {
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// In main() we know that the initial values are still valid.
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clang_analyzer_eval(x == 1); // expected-warning{{TRUE}}
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clang_analyzer_eval(s.a == 2); // expected-warning{{TRUE}}
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clang_analyzer_eval(s.b == 3); // expected-warning{{TRUE}}
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clang_analyzer_eval(arr[0] == 4); // expected-warning{{TRUE}}
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clang_analyzer_eval(arr[1] == 5); // expected-warning{{TRUE}}
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clang_analyzer_eval(arr[2] == 6); // expected-warning{{TRUE}}
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return 0;
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}
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void foo() {
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// In other functions these values may already be overwritten.
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clang_analyzer_eval(x == 1); // expected-warning{{TRUE}} // expected-warning{{FALSE}}
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clang_analyzer_eval(s.a == 2); // expected-warning{{TRUE}} // expected-warning{{FALSE}}
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clang_analyzer_eval(s.b == 3); // expected-warning{{TRUE}} // expected-warning{{FALSE}}
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clang_analyzer_eval(arr[0] == 4); // expected-warning{{TRUE}} // expected-warning{{FALSE}}
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clang_analyzer_eval(arr[1] == 5); // expected-warning{{TRUE}} // expected-warning{{FALSE}}
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clang_analyzer_eval(arr[2] == 6); // expected-warning{{TRUE}} // expected-warning{{FALSE}}
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}
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