1 /* PR 23572 : warnings for out of range floating-point constants. */
2 /* { dg-do compile } */
3 /* { dg-options "-std=c99" } */
4 #include <math.h>
5
6 #ifndef INFINITY
7 #define INFINITY (__builtin_inff ())
8 #endif
9
overflow(void)10 void overflow(void)
11 {
12 float f1 = 3.5E+38f; /* { dg-warning "floating constant exceeds range" } */
13 float f2 = -3.5E+38f; /* { dg-warning "floating constant exceeds range" } */
14 float f3 = INFINITY;
15 float f4 = -INFINITY;
16
17 double d1 = 1.9E+308; /* { dg-warning "floating constant exceeds range" } */
18 double d2 = -1.9E+308; /* { dg-warning "floating constant exceeds range" } */
19 double d3 = INFINITY;
20 double d4 = -INFINITY;
21 }
22
underflow(void)23 void underflow(void)
24 {
25 float f11 = 3.3E-10000000000000000000f; /* { dg-warning "floating constant truncated to zero" } */
26 float f22 = -3.3E-10000000000000000000f; /* { dg-warning "floating constant truncated to zero" } */
27 float f1 = 3.3E-46f; /* { dg-warning "floating constant truncated to zero" } */
28 float f2 = -3.3E-46f; /* { dg-warning "floating constant truncated to zero" } */
29 float f3 = 0;
30 float f4 = -0;
31 float f5 = 0.0;
32 float f6 = -0.0;
33
34 double d11 = 3.3E-10000000000000000000; /* { dg-warning "floating constant truncated to zero" } */
35 double d22 = -3.3E-10000000000000000000; /* { dg-warning "floating constant truncated to zero" } */
36 double d1 = 1.4E-325; /* { dg-warning "floating constant truncated to zero" } */
37 double d2 = -1.4E-325; /* { dg-warning "floating constant truncated to zero" } */
38 double d3 = 0;
39 double d4 = -0;
40 double d5 = 0.0;
41 double d6 = -0.0;
42 }
43