1 /* { dg-do compile } */ 2 /* { dg-options "-fstrict-overflow -O2 -Wstrict-overflow=3" } */ 3 4 /* Source: Ian Lance Taylor. Based on strict-overflow-6.c. */ 5 6 /* We can only simplify the conditional when using strict overflow 7 semantics. */ 8 9 int foo(char * p)10foo (char* p) 11 { 12 return p + 1000 < p; /* { dg-warning "assuming pointer wraparound does not occur" "correct warning" } */ 13 } 14