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