diff options
Diffstat (limited to 'gcc/testsuite/gcc.dg/float-range-3.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/float-range-3.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/float-range-3.c b/gcc/testsuite/gcc.dg/float-range-3.c new file mode 100644 index 00000000000..c737d8a9724 --- /dev/null +++ b/gcc/testsuite/gcc.dg/float-range-3.c @@ -0,0 +1,38 @@ +/* PR 23572 : warnings for out of range floating-point constants. */ +/* { dg-compile } */ +/* { dg-options "-std=c99" } */ +#include <math.h> + +void overflow(void) +{ + float f1 = 3.5E+38f; /* { dg-warning "warning: floating constant exceeds range" } */ + float f2 = -3.5E+38f; /* { dg-warning "warning: floating constant exceeds range" } */ + float f3 = FP_INFINITE; + float f4 = -FP_INFINITE; + + double d1 = 1.9E+308; /* { dg-warning "warning: floating constant exceeds range" } */ + double d2 = -1.9E+308; /* { dg-warning "warning: floating constant exceeds range" } */ + double d3 = FP_INFINITE; + double d4 = -FP_INFINITE; +} + +void underflow(void) +{ + float f11 = 3.3E-10000000000000000000f; /* { dg-warning "warning: floating constant truncated to zero" } */ + float f22 = -3.3E-10000000000000000000f; /* { dg-warning "warning: floating constant truncated to zero" } */ + float f1 = 3.3E-46f; /* { dg-warning "warning: floating constant truncated to zero" } */ + float f2 = -3.3E-46f; /* { dg-warning "warning: floating constant truncated to zero" } */ + float f3 = 0; + float f4 = -0; + float f5 = 0.0; + float f6 = -0.0; + + double d11 = 3.3E-10000000000000000000; /* { dg-warning "warning: floating constant truncated to zero" } */ + double d22 = -3.3E-10000000000000000000; /* { dg-warning "warning: floating constant truncated to zero" } */ + double d1 = 1.4E-325; /* { dg-warning "warning: floating constant truncated to zero" } */ + double d2 = -1.4E-325; /* { dg-warning "warning: floating constant truncated to zero" } */ + double d3 = 0; + double d4 = -0; + double d5 = 0.0; + double d6 = -0.0; +} |