51 lines
1.1 KiB
C++
51 lines
1.1 KiB
C++
|
// RUN: %clang_analyze_cc1 -std=c++14 -analyzer-checker=core,deadcode,debug.ExprInspection -verify %s
|
||
|
|
|
||
|
|
int clang_analyzer_eval(int);
|
||
|
|
|
||
|
|
void generalizedCapture() {
|
||
|
|
int v = 7;
|
||
|
|
auto lambda = [x=v]() {
|
||
|
|
return x;
|
||
|
|
};
|
||
|
|
|
||
|
|
int result = lambda();
|
||
|
|
clang_analyzer_eval(result == 7); // expected-warning {{TRUE}}
|
||
|
|
}
|
||
|
|
|
||
|
|
void sideEffectsInGeneralizedCapture() {
|
||
|
|
int v = 7;
|
||
|
|
auto lambda = [x=v++]() {
|
||
|
|
return x;
|
||
|
|
};
|
||
|
|
clang_analyzer_eval(v == 8); // expected-warning {{TRUE}}
|
||
|
|
|
||
|
|
int r1 = lambda();
|
||
|
|
int r2 = lambda();
|
||
|
|
clang_analyzer_eval(r1 == 7); // expected-warning {{TRUE}}
|
||
|
|
clang_analyzer_eval(r2 == 7); // expected-warning {{TRUE}}
|
||
|
|
clang_analyzer_eval(v == 8); // expected-warning {{TRUE}}
|
||
|
|
}
|
||
|
|
|
||
|
|
int addOne(int p) {
|
||
|
|
return p + 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
void inliningInGeneralizedCapture() {
|
||
|
|
int v = 7;
|
||
|
|
auto lambda = [x=addOne(v)]() {
|
||
|
|
return x;
|
||
|
|
};
|
||
|
|
|
||
|
|
int result = lambda();
|
||
|
|
clang_analyzer_eval(result == 8); // expected-warning {{TRUE}}
|
||
|
|
}
|
||
|
|
|
||
|
|
void caseSplitInGeneralizedCapture(bool p) {
|
||
|
|
auto lambda = [x=(p ? 1 : 2)]() {
|
||
|
|
return x;
|
||
|
|
};
|
||
|
|
|
||
|
|
int result = lambda();
|
||
|
|
clang_analyzer_eval(result == 1); // expected-warning {{FALSE}} expected-warning {{TRUE}}
|
||
|
|
}
|