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// 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(void) {
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(void) {
unsigned int x = BIGINDEX;
typedef char VLA[x][x][x][x - 1];
typedef char VLA1[0xffffffffu];
}
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