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Add synthetic ub tests

This commit is contained in:
Daniel Marjamäki 2016-11-03 21:45:33 +01:00
parent 6e9346323c
commit 469ca6af1b
1 changed files with 6 additions and 0 deletions
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6
test/synthetic/ub.c
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@ -1,8 +1,14 @@
int buffer_overflow() { int x[10]; return x[100]; }
int dead_pointer(int a) { int *p=&a; if (a) { int x; p = &x; } return *p; }
int division_by_zero() { return 100 / 0; }
int float_overflow() { float f=1E100; return f; }
void negative_size(int sz) { if (sz < 0) { int buf[sz]; } }
int no_return() {}
int null_pointer() { int *p = 0; return *p; }
int *pointer_arithmetic() { static int buf[10]; return buf + 100; }
char pointer_overflow() { static int buf[10]; return buf; }
int pointer_subtraction() { char a[10]; char b[10]; return b-a; }
int pointer_comparison() { char a[10]; char b[10]; return b<a; }
int shift_overrun(int x) { return x << 123; }
int shift_negative() { return -1 << 1; }
int signed_int_overrun() { int intmax = (~0U) >> 1; return intmax * 2; }