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// RUN: %clang_analyze_cc1 -analyzer-checker=core -verify %s
// Zero-sized VLAs.
void check_zero_sized_VLA(int x) {
if (x)
return;
int vla[x]; // expected-warning{{Declared variable-length array (VLA) has zero size}}
}
void check_uninit_sized_VLA() {
int x;
int vla[x]; // expected-warning{{Declared variable-length array (VLA) uses a garbage value as its size}}
}
// Negative VLAs.
static void vla_allocate_signed(int x) {
int vla[x]; // expected-warning{{Declared variable-length array (VLA) has negative size}}
}
static void vla_allocate_unsigned(unsigned int x) {
int vla[x]; // no-warning
}
void check_negative_sized_VLA_1() {
vla_allocate_signed(-1);
}
void check_negative_sized_VLA_2() {
vla_allocate_unsigned(-1);
}
void check_negative_sized_VLA_3() {
int x = -1;
int vla[x]; // expected-warning{{Declared variable-length array (VLA) has negative size}}
}
void check_negative_sized_VLA_4() {
unsigned int x = -1;
int vla[x]; // no-warning
}
void check_negative_sized_VLA_5() {
signed char x = -1;
int vla[x]; // expected-warning{{Declared variable-length array (VLA) has negative size}}
}
void check_negative_sized_VLA_6() {
unsigned char x = -1;
int vla[x]; // no-warning
}
void check_negative_sized_VLA_7() {
signed char x = -1;
int vla[x + 2]; // no-warning
}
void check_negative_sized_VLA_8() {
signed char x = 1;
int vla[x - 2]; // expected-warning{{Declared variable-length array (VLA) has negative size}}
}
void check_negative_sized_VLA_9() {
int x = 1;
int vla[x]; // no-warning
}
static void check_negative_sized_VLA_10_sub(int x)
{
int vla[x]; // expected-warning{{Declared variable-length array (VLA) has negative size}}
}
void check_negative_sized_VLA_10(int x) {
if (x < 0)
check_negative_sized_VLA_10_sub(x);
}
static void check_negative_sized_VLA_11_sub(int x)
{
int vla[x]; // no-warning
}
void check_negative_sized_VLA_11(int x) {
if (x > 0)
check_negative_sized_VLA_11_sub(x);
}
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