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/* { dg-do compile } */
/* { dg-options "-Wtype-limits" } */
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 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 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;
if (255 >= x) /* { dg-warning "comparison is always true due to limited range of data type" } */
return;
if ((int)x <= 255) /* { dg-bogus "comparison is always true due to limited range of data type" "" { xfail *-*-* } . } */
return;
if (255 >= (unsigned char) 1)
return;
}
void b (unsigned short x)
{ /* { dg-warning "comparison of unsigned expression < 0 is always false" "" { target { ! int32plus } } .+1 } */
if (x < 0) return;/* { dg-warning "comparison is always false due to limited range of data type" "" { target { int32plus } } } */
/* { dg-warning "comparison of unsigned expression >= 0 is always true" "" { target { ! int32plus } } .+1 } */
if (x >= 0) return;/* { dg-warning "comparison is always true due to limited range of data type" "" { target { int32plus } } } */
/* { dg-warning "comparison of unsigned expression < 0 is always false" "" { target { ! int32plus } } .+1 } */
if (0 > x) return;/* { dg-warning "comparison is always false due to limited range of data type" "" { target { int32plus } } } */
/* { dg-warning "comparison of unsigned expression >= 0 is always true" "" { target { ! int32plus } } .+1 } */
if (0 <= x) return;/* { dg-warning "comparison is always true due to limited range of data type" "" { target { int32plus } } } */
}
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 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 true" } */
if (1U >= 0) return;
if (1U < 0) return;
if (0 <= 1U) return;
if (0 > 1U) return;
}
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 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 true" } */
}
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 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 true" } */
}
int test (int x)
{
if ((long long)x <= 0x123456789ABCLL) /* { dg-bogus "comparison is always true due to limited range of data type" "" { xfail *-*-* } . } */
return 1;
else
return 0;
}
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