bool-assignment.c
2.57 KB
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// RUN: %clang_analyze_cc1 -analyzer-checker=core,alpha.core.BoolAssignment -analyzer-store=region -verify -std=c99 -Dbool=_Bool %s
// RUN: %clang_analyze_cc1 -analyzer-checker=core,alpha.core.BoolAssignment -analyzer-store=region -verify -x c++ %s
// Test C++'s bool and C's _Bool.
// FIXME: We stopped warning on these when SValBuilder got smarter about
// casts to bool. Arguably, however, these conversions are okay; the result
// is always 'true' or 'false'.
void test_stdbool_initialization(int y) {
bool constant = 2; // no-warning
if (y < 0) {
bool x = y; // no-warning
return;
}
if (y > 1) {
bool x = y; // no-warning
return;
}
bool x = y; // no-warning
}
void test_stdbool_assignment(int y) {
bool x = 0; // no-warning
if (y < 0) {
x = y; // no-warning
return;
}
if (y > 1) {
x = y; // no-warning
return;
}
x = y; // no-warning
}
// Test Objective-C's BOOL
typedef signed char BOOL;
void test_BOOL_initialization(int y) {
BOOL constant = 2; // expected-warning {{Assignment of a non-Boolean value}}
if (y < 0) {
BOOL x = y; // expected-warning {{Assignment of a non-Boolean value}}
return;
}
if (y > 200 && y < 250) {
#ifdef ANALYZER_CM_Z3
BOOL x = y; // expected-warning {{Assignment of a non-Boolean value}}
#else
BOOL x = y; // no-warning
#endif
return;
}
if (y >= 127 && y < 150) {
BOOL x = y; // expected-warning{{Assignment of a non-Boolean value}}
return;
}
if (y > 1) {
BOOL x = y; // expected-warning {{Assignment of a non-Boolean value}}
return;
}
BOOL x = y; // no-warning
}
void test_BOOL_assignment(int y) {
BOOL x = 0; // no-warning
if (y < 0) {
x = y; // expected-warning {{Assignment of a non-Boolean value}}
return;
}
if (y > 1) {
x = y; // expected-warning {{Assignment of a non-Boolean value}}
return;
}
x = y; // no-warning
}
// Test MacTypes.h's Boolean
typedef unsigned char Boolean;
void test_Boolean_initialization(int y) {
Boolean constant = 2; // expected-warning {{Assignment of a non-Boolean value}}
if (y < 0) {
Boolean x = y; // expected-warning {{Assignment of a non-Boolean value}}
return;
}
if (y > 1) {
Boolean x = y; // expected-warning {{Assignment of a non-Boolean value}}
return;
}
Boolean x = y; // no-warning
}
void test_Boolean_assignment(int y) {
Boolean x = 0; // no-warning
if (y < 0) {
x = y; // expected-warning {{Assignment of a non-Boolean value}}
return;
}
if (y > 1) {
x = y; // expected-warning {{Assignment of a non-Boolean value}}
return;
}
x = y; // no-warning
}