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// RUN: %clang_cc1 -analyze -analyzer-checker=core,experimental.core,experimental.deadcode.UnreachableCode -analyzer-store=region -analyzer-constraints=basic -verify %s
// RUN: %clang_cc1 -analyze -analyzer-checker=core,experimental.core,experimental.deadcode.UnreachableCode -analyzer-store=region -analyzer-constraints=range -verify %s
int string_literal_init() {
char a[] = "abc";
char b[2] = "abc"; // expected-warning{{too long}}
char c[5] = "abc";
if (a[1] != 'b')
return 0; // expected-warning{{never executed}}
if (b[1] != 'b')
return 0; // expected-warning{{never executed}}
if (c[1] != 'b')
return 0; // expected-warning{{never executed}}
if (a[3] != 0)
return 0; // expected-warning{{never executed}}
if (c[3] != 0)
return 0; // expected-warning{{never executed}}
if (c[4] != 0)
return 0; // expected-warning{{never executed}}
return 42;
}
void nested_compound_literals(int rad) {
int vec[6][2] = {{0.195, 0.02}, {0.383, 0.067}, {0.55, 0.169}, // expected-warning 6 {{implicit conversion from 'double' to 'int' changes value from}}
{0.831, 0.45}, {0.924, 0.617}, {0.98, 0.805}}; // expected-warning 6 {{implicit conversion from 'double' to 'int' changes value from}}
int a;
for (a = 0; a < 6; ++a) {
vec[a][0] *= rad; // no-warning
vec[a][1] *= rad; // no-warning
}
}
void nested_compound_literals_float(float rad) {
float vec[6][2] = {{0.195, 0.02}, {0.383, 0.067}, {0.55, 0.169},
{0.831, 0.45}, {0.924, 0.617}, {0.98, 0.805}};
int a;
for (a = 0; a < 6; ++a) {
vec[a][0] *= rad; // no-warning
vec[a][1] *= rad; // no-warning
}
}
void struct_as_array() {
struct simple { int x; };
struct simple a;
struct simple *p = &a;
p->x = 5;
if (!p[0].x)
return; // expected-warning{{never executed}}
if (p[0].x)
return; // no-warning
}
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