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Avoid wrapping of the machine-dependent type sizes table, by removing

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non-informational sizeof() expressions.  Add some explanatory and
summary sentences.

Noted by:	bde
Sponsored by:	The FreeBSD Foundation
MFC after:	2 weeks
This commit is contained in:
Konstantin Belousov 2017-05-04 11:57:52 +00:00
parent ed466c3404
commit dddb157699
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=317790
1 changed files with 10 additions and 3 deletions
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13
share/man/man7/arch.7
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@ -36,8 +36,9 @@
Differences between CPU architectures and platforms supported by
.Fx .
.Pp
If not explicitly mentioned, sizes are in bytes.
.Ss Type sizes
On all supported architectures,
On all supported architectures:
.Bl -column -offset -indent "long long" "Size"
.It Sy Type Ta Sy Size
.It short Ta 2
@ -47,8 +48,10 @@ On all supported architectures,
.It float Ta 4
.It double Ta 8
.El
.Bl -column -offset indent "Sy Architecture" "Sy sizeof(void *)" "Sy sizeof(long double)" "Sy sizeof(time_t)"
.It Sy Architecture Ta Sy sizeof(void *) Ta Sy sizeof(long double) Ta Sy sizeof(time_t)
.Pp
Machine-dependent type sizes:
.Bl -column -offset indent "Sy Architecture" "Sy void *" "Sy long double" "Sy time_t"
.It Sy Architecture Ta Sy void * Ta Sy long double Ta Sy time_t
.It amd64 Ta 8 Ta 16 Ta 8
.It arm Ta 4 Ta 8 Ta 8
.It armeb Ta 4 Ta 8 Ta 8
@ -71,6 +74,10 @@ On all supported architectures,
.It riscv64sf Ta 8 Ta 16 Ta 8
.It sparc64 Ta 8 Ta 16 Ta 8
.El
.Pp
.Sy time_t
is 8 bytes on all supported architectures except i386 and 32-bit
variants of powerpc.
.Ss Endianness and Char Signedness
.Bl -column -offset indent "Sy Architecture" "Sy Endianness" "Sy char Signedness"
.It Sy Architecture Ta Sy Endianness Ta Sy char Signedness