/* Test that -Wtype-limits is enabled by -Wextra. */
|
/* Test that -Wtype-limits is enabled by -Wextra. */
|
/* { dg-do compile } */
|
/* { dg-do compile } */
|
/* { dg-options "-Wextra" } */
|
/* { dg-options "-Wextra" } */
|
extern void assert (int);
|
extern void assert (int);
|
|
|
void a (unsigned char x)
|
void a (unsigned char x)
|
{
|
{
|
if (x < 0) return;/* { dg-warning "comparison is always false due to limited range of data type" } */
|
if (x < 0) return;/* { dg-warning "comparison is always false due to limited range of data type" } */
|
if (x >= 0) return;/* { dg-warning "comparison is always true due to limited range of data type" } */
|
if (x >= 0) return;/* { dg-warning "comparison is always true due to limited range of data type" } */
|
if (0 > x) return;/* { dg-warning "comparison is always false due to limited range of data type" } */
|
if (0 > x) return;/* { dg-warning "comparison is always false due to limited range of data type" } */
|
if (0 <= x) return;/* { dg-warning "comparison is always true due to limited range of data type" } */
|
if (0 <= x) return;/* { dg-warning "comparison is always true due to limited range of data type" } */
|
if (x <= 255) /* { dg-warning "comparison is always true due to limited range of data type" } */
|
if (x <= 255) /* { dg-warning "comparison is always true due to limited range of data type" } */
|
return;
|
return;
|
if (255 >= x) /* { dg-warning "comparison is always true due to limited range of data type" } */
|
if (255 >= x) /* { dg-warning "comparison is always true due to limited range of data type" } */
|
return;
|
return;
|
if ((int)x <= 255) /* { dg-bogus "comparison is always true due to limited range of data type" "" { xfail *-*-* } 16 } */
|
if ((int)x <= 255) /* { dg-bogus "comparison is always true due to limited range of data type" "" { xfail *-*-* } 16 } */
|
return;
|
return;
|
if (255 >= (unsigned char) 1)
|
if (255 >= (unsigned char) 1)
|
return;
|
return;
|
|
|
}
|
}
|
|
|
void b (unsigned short x)
|
void b (unsigned short x)
|
{
|
{
|
if (x < 0) return;/* { dg-warning "comparison is always false due to limited range of data type" } */
|
if (x < 0) return;/* { dg-warning "comparison is always false due to limited range of data type" } */
|
if (x >= 0) return;/* { dg-warning "comparison is always true due to limited range of data type" } */
|
if (x >= 0) return;/* { dg-warning "comparison is always true due to limited range of data type" } */
|
if (0 > x) return;/* { dg-warning "comparison is always false due to limited range of data type" } */
|
if (0 > x) return;/* { dg-warning "comparison is always false due to limited range of data type" } */
|
if (0 <= x) return;/* { dg-warning "comparison is always true due to limited range of data type" } */
|
if (0 <= x) return;/* { dg-warning "comparison is always true due to limited range of data type" } */
|
}
|
}
|
|
|
void c (unsigned int x)
|
void c (unsigned int x)
|
{
|
{
|
if (x < 0) return;/* { dg-warning "comparison of unsigned expression < 0 is always false" } */
|
if (x < 0) return;/* { dg-warning "comparison of unsigned expression < 0 is always false" } */
|
if (x >= 0) return;/* { dg-warning "comparison of unsigned expression >= 0 is always true" } */
|
if (x >= 0) return;/* { dg-warning "comparison of unsigned expression >= 0 is always true" } */
|
if (0 > x) return;/* { dg-warning "comparison of unsigned expression < 0 is always false" } */
|
if (0 > x) return;/* { dg-warning "comparison of unsigned expression < 0 is always false" } */
|
if (0 <= x) return;/* { dg-warning "comparison of unsigned expression >= 0 is always true" } */
|
if (0 <= x) return;/* { dg-warning "comparison of unsigned expression >= 0 is always true" } */
|
if (1U >= 0) return;
|
if (1U >= 0) return;
|
if (1U < 0) return;
|
if (1U < 0) return;
|
if (0 <= 1U) return;
|
if (0 <= 1U) return;
|
if (0 > 1U) return;
|
if (0 > 1U) return;
|
}
|
}
|
|
|
void d (unsigned long x)
|
void d (unsigned long x)
|
{
|
{
|
if (x < 0) return;/* { dg-warning "comparison of unsigned expression < 0 is always false" } */
|
if (x < 0) return;/* { dg-warning "comparison of unsigned expression < 0 is always false" } */
|
if (x >= 0) return;/* { dg-warning "comparison of unsigned expression >= 0 is always true" } */
|
if (x >= 0) return;/* { dg-warning "comparison of unsigned expression >= 0 is always true" } */
|
if (0 > x) return;/* { dg-warning "comparison of unsigned expression < 0 is always false" } */
|
if (0 > x) return;/* { dg-warning "comparison of unsigned expression < 0 is always false" } */
|
if (0 <= x) return;/* { dg-warning "comparison of unsigned expression >= 0 is always true" } */
|
if (0 <= x) return;/* { dg-warning "comparison of unsigned expression >= 0 is always true" } */
|
}
|
}
|
|
|
void e (unsigned long long x)
|
void e (unsigned long long x)
|
{
|
{
|
if (x < 0) return;/* { dg-warning "comparison of unsigned expression < 0 is always false" } */
|
if (x < 0) return;/* { dg-warning "comparison of unsigned expression < 0 is always false" } */
|
if (x >= 0) return;/* { dg-warning "comparison of unsigned expression >= 0 is always true" } */
|
if (x >= 0) return;/* { dg-warning "comparison of unsigned expression >= 0 is always true" } */
|
if (0 > x) return;/* { dg-warning "comparison of unsigned expression < 0 is always false" } */
|
if (0 > x) return;/* { dg-warning "comparison of unsigned expression < 0 is always false" } */
|
if (0 <= x) return;/* { dg-warning "comparison of unsigned expression >= 0 is always true" } */
|
if (0 <= x) return;/* { dg-warning "comparison of unsigned expression >= 0 is always true" } */
|
}
|
}
|
|
|
int test (int x)
|
int test (int x)
|
{
|
{
|
if ((long long)x <= 0x123456789ABCLL) /* { dg-bogus "comparison is always true due to limited range of data type" "" { xfail *-*-* } 61 } */
|
if ((long long)x <= 0x123456789ABCLL) /* { dg-bogus "comparison is always true due to limited range of data type" "" { xfail *-*-* } 61 } */
|
return 1;
|
return 1;
|
else
|
else
|
return 0;
|
return 0;
|
}
|
}
|
|
|
template
|
template
|
void f(Int x) {
|
void f(Int x) {
|
assert(0 <= x and x <= D); // { dg-warning "comparison is always true due to limited range of data type" }
|
assert(0 <= x and x <= D); // { dg-warning "comparison is always true due to limited range of data type" }
|
}
|
}
|
|
|
int ff(void) {
|
int ff(void) {
|
f(5);
|
f(5);
|
f(5);
|
f(5);
|
}
|
}
|
|
|
template
|
template
|
void g(void) {
|
void g(void) {
|
assert(0 <= D);
|
assert(0 <= D);
|
}
|
}
|
int gg(void) {
|
int gg(void) {
|
g();
|
g();
|
}
|
}
|
|
|
|
|
