diff options
Diffstat (limited to 'sysdeps/ieee754/flt-32/s_lrintf.c')
| -rw-r--r-- | sysdeps/ieee754/flt-32/s_lrintf.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/sysdeps/ieee754/flt-32/s_lrintf.c b/sysdeps/ieee754/flt-32/s_lrintf.c index bc60fd2311..2eb242d828 100644 --- a/sysdeps/ieee754/flt-32/s_lrintf.c +++ b/sysdeps/ieee754/flt-32/s_lrintf.c @@ -18,9 +18,12 @@ License along with the GNU C Library; if not, see <http://www.gnu.org/licenses/>. */ +#include <fenv.h> +#include <limits.h> #include <math.h> #include <math_private.h> +#include <fix-fp-int-convert-overflow.h> static const float two23[2] = { @@ -64,8 +67,16 @@ __lrintf (float x) } else { - /* The number is too large. It is left implementation defined - what happens. */ +#ifdef FE_INVALID + /* The number is too large. Unless it rounds to LONG_MIN, + FE_INVALID must be raised and the return value is + unspecified. */ + if (FIX_FLT_LONG_CONVERT_OVERFLOW && x != (float) LONG_MIN) + { + feraiseexcept (FE_INVALID); + return sx == 0 ? LONG_MAX : LONG_MIN; + } +#endif return (long int) x; } |