diff options
Diffstat (limited to 'libc/sysdeps/ieee754/ldbl-128ibm/ieee754.h')
| -rw-r--r-- | libc/sysdeps/ieee754/ldbl-128ibm/ieee754.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/libc/sysdeps/ieee754/ldbl-128ibm/ieee754.h b/libc/sysdeps/ieee754/ldbl-128ibm/ieee754.h index e5644f5d3..9e94f53b0 100644 --- a/libc/sysdeps/ieee754/ldbl-128ibm/ieee754.h +++ b/libc/sysdeps/ieee754/ldbl-128ibm/ieee754.h @@ -199,6 +199,25 @@ union ibm_extended_long_double unsigned int mantissa2:20; unsigned int mantissa3:32; } ieee; + + /* This format makes it easier to see if a NaN is a signalling NaN. */ + struct + { /* Big endian. There is no other. */ + + unsigned int negative:1; + unsigned int exponent:11; + unsigned int quiet_nan:1; + /* Together Mantissa0-3 comprise the mantissa. */ + unsigned int mantissa0:19; + unsigned int mantissa1:32; + + unsigned int negative2:1; + unsigned int exponent2:11; + /* There is an implied 1 here? */ + /* Together these comprise the mantissa. */ + unsigned int mantissa2:20; + unsigned int mantissa3:32; + } ieee_nan; }; #define IBM_EXTENDED_LONG_DOUBLE_BIAS 0x3ff /* Added to exponent. */ |