You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
26 lines
825 B
26 lines
825 B
// RUN: %clang_analyze_cc1 -triple x86_64-pc-linux-gnu -analyzer-checker=core -verify %s
|
|
|
|
typedef unsigned long size_t;
|
|
#define BIGINDEX 65536U
|
|
|
|
size_t check_VLA_overflow_sizeof(unsigned int x) {
|
|
if (x == BIGINDEX) {
|
|
// We expect here that size_t is a 64 bit value.
|
|
// Size of this array should be the first to overflow.
|
|
size_t s = sizeof(char[x][x][x][x]); // expected-warning{{Declared variable-length array (VLA) has too large size [core.VLASize]}}
|
|
return s;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
void check_VLA_overflow_typedef() {
|
|
unsigned int x = BIGINDEX;
|
|
typedef char VLA[x][x][x][x]; // expected-warning{{Declared variable-length array (VLA) has too large size [core.VLASize]}}
|
|
}
|
|
|
|
void check_VLA_no_overflow() {
|
|
unsigned int x = BIGINDEX;
|
|
typedef char VLA[x][x][x][x - 1];
|
|
typedef char VLA1[0xffffffffu];
|
|
}
|