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