65 lines
1.3 KiB
C
65 lines
1.3 KiB
C
/* { dg-do compile } */
|
|
/* { dg-options "-Wswitch-enum -Wsign-compare -fstrict-overflow -Wstrict-overflow -Werror -Wno-error=switch-enum" } */
|
|
/* PR c/66098 - #pragma diagnostic 'ignored' not fully undone by pop for strict-overflow
|
|
PR c/66711 - GCC does not correctly restore diagnostic state after pragma GCC diagnostic pop with -Werror
|
|
*/
|
|
/* { dg-message "warnings being treated as errors" "" {target "*-*-*"} 0 } */
|
|
|
|
void testing2() {
|
|
#pragma GCC diagnostic push
|
|
#pragma GCC diagnostic ignored "-Wstrict-overflow"
|
|
int j = 4;
|
|
j + 4 < j;
|
|
#pragma GCC diagnostic pop
|
|
}
|
|
|
|
void testing3() {
|
|
int k = 4;
|
|
k + 4 < k; /* { dg-error "overflow" } */
|
|
}
|
|
|
|
int bar()
|
|
{
|
|
unsigned x = 0;
|
|
int y = 1;
|
|
|
|
/* generates an error - ok */
|
|
x += x < y ? 1 : 0; /* { dg-error "comparison" } */
|
|
|
|
#pragma GCC diagnostic push
|
|
#pragma GCC diagnostic ignored "-Wsign-compare"
|
|
/* generates no diagnostic - ok */
|
|
x += x < y ? 1 : 0;
|
|
#pragma GCC diagnostic pop
|
|
|
|
x += x < y ? 1 : 0; /* { dg-error "comparison" } */
|
|
|
|
return x;
|
|
}
|
|
|
|
enum EE { ONE, TWO };
|
|
|
|
int f (enum EE e)
|
|
{
|
|
int r = 0;
|
|
|
|
#pragma GCC diagnostic push
|
|
#pragma GCC diagnostic ignored "-Wswitch-enum"
|
|
|
|
switch (e)
|
|
{
|
|
case ONE:
|
|
r = 1;
|
|
break;
|
|
}
|
|
#pragma GCC diagnostic pop
|
|
|
|
switch (e) /* { dg-warning "switch" } */
|
|
{
|
|
case ONE:
|
|
r = 1;
|
|
break;
|
|
}
|
|
return r;
|
|
}
|