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mdoc: avoid nested displays.

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This commit is contained in:
Joel Dahl 2012-10-14 14:45:54 +00:00
parent a2442c2fa9
commit 284eab32c0
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=241545
1 changed files with 35 additions and 32 deletions
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lib/msun/man/ieee.3
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@ -156,59 +156,60 @@ Wordsize: 32 bits.
.Pp
Precision: 24 significant bits,
roughly like 7 significant decimals.
.Bd -ragged -offset indent -compact
.Pp
If x and x' are consecutive positive single-precision
numbers (they differ by 1
.Em ulp ) ,
then
.Bd -ragged -compact
.Bl -column "XXX" -compact
5.9e\-08 < 0.5**24 < (x'\-x)/x \(<= 0.5**23 < 1.2e\-07.
.Ed
.Ed
.El
.Pp
.Bl -column "XXX" -compact
Range: Overflow threshold = 2.0**128 = 3.4e38
Underflow threshold = 0.5**126 = 1.2e\-38
.El
.Bd -ragged -offset indent -compact
.Pp
Underflowed results round to the nearest
integer multiple of 0.5**149 = 1.4e\-45.
.Ed
integer multiple of
.Bl -column "XXX" -compact
0.5**149 = 1.4e\-45.
.El
.Ed
.Pp
Double-precision:
.Bd -ragged -offset indent -compact
Type name:
.Vt double
.Bd -ragged -offset indent -compact
On some architectures,
.Po On some architectures,
.Vt long double
is the same as
.Vt double .
.Ed
.Vt double
.Pc
.Pp
Wordsize: 64 bits.
.Pp
Precision: 53 significant bits,
roughly like 16 significant decimals.
.Bd -ragged -offset indent -compact
.Pp
If x and x' are consecutive positive double-precision
numbers (they differ by 1
.Em ulp ) ,
then
.Bd -ragged -compact
.Bl -column "XXX" -compact
1.1e\-16 < 0.5**53 < (x'\-x)/x \(<= 0.5**52 < 2.3e\-16.
.Ed
.Ed
.El
.Pp
.Bl -column "XXX" -compact
Range: Overflow threshold = 2.0**1024 = 1.8e308
Underflow threshold = 0.5**1022 = 2.2e\-308
.El
.Bd -ragged -offset indent -compact
.Pp
Underflowed results round to the nearest
integer multiple of 0.5**1074 = 4.9e\-324.
.Ed
integer multiple of
.Bl -column "XXX" -compact
0.5**1074 = 4.9e\-324.
.El
.Ed
.Pp
Extended-precision:
@ -221,24 +222,25 @@ Wordsize: 96 bits.
.Pp
Precision: 64 significant bits,
roughly like 19 significant decimals.
.Bd -ragged -offset indent -compact
.Pp
If x and x' are consecutive positive extended-precision
numbers (they differ by 1
.Em ulp ) ,
then
.Bd -ragged -compact
.Bl -column "XXX" -compact
1.0e\-19 < 0.5**63 < (x'\-x)/x \(<= 0.5**62 < 2.2e\-19.
.Ed
.Ed
.El
.Pp
.Bl -column "XXX" -compact
Range: Overflow threshold = 2.0**16384 = 1.2e4932
Underflow threshold = 0.5**16382 = 3.4e\-4932
.El
.Bd -ragged -offset indent -compact
.Pp
Underflowed results round to the nearest
integer multiple of 0.5**16445 = 5.7e\-4953.
.Ed
integer multiple of
.Bl -column "XXX" -compact
0.5**16445 = 5.7e\-4953.
.El
.Ed
.Pp
Quad-extended-precision:
@ -251,24 +253,25 @@ Wordsize: 128 bits.
.Pp
Precision: 113 significant bits,
roughly like 34 significant decimals.
.Bd -ragged -offset indent -compact
.Pp
If x and x' are consecutive positive quad-extended-precision
numbers (they differ by 1
.Em ulp ) ,
then
.Bd -ragged -compact
.Bl -column "XXX" -compact
9.6e\-35 < 0.5**113 < (x'\-x)/x \(<= 0.5**112 < 2.0e\-34.
.Ed
.Ed
.El
.Pp
.Bl -column "XXX" -compact
Range: Overflow threshold = 2.0**16384 = 1.2e4932
Underflow threshold = 0.5**16382 = 3.4e\-4932
.El
.Bd -ragged -offset indent -compact
.Pp
Underflowed results round to the nearest
integer multiple of 0.5**16494 = 6.5e\-4966.
.Ed
integer multiple of
.Bl -column "XXX" -compact
0.5**16494 = 6.5e\-4966.
.El
.Ed
.Ss Additional Information Regarding Exceptions
For each kind of floating-point exception, IEEE 754