Hello,
My question is not a need for programming assistance. My
question is to understand what the standard is for C with
respect to my questions. I have discovered a possible issue,
but want to ask questions first of expected C standard with
regards to my questions and if there are any related GCC
extensions to the questions.
For the purposes of the questions the variable is an uint32_t.
1) What is the way to assign a bit value to variable?
2) What is the format specifier to print a bit value with?
3) What will (2) print like?
To be clear these questions are not abut programming
assistance, but what is the C standard and/or GCC extension.
John L. Males
Toronto, Ontario
Canada
03 January 2021 16:59 -0500 EST
================================================================
2021-01-03 21:44:47+0000-UTC Time: 1609710287 PC/System time
3 Jan 21:44:47 ntpdate[24715]: ntpdate 4.2.8p12-a (1)
3 Jan 21:45:02 ntpdate[26342]: step time server 206.108.0.133
offset -0.003773 sec
FreeBSD 11.4-RELEASE-p3 FreeBSD 11.4-RELEASE-p3 #0: Tue Sep 1
08:22:33 UTC 2020
root@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx:/usr/obj/usr/src/sys/GENERIC
(Work in progress alternative to Linux Kernel of its own right,
Debian, and
other Linux based Kernel distributions determined.)
Intel(R) Core(TM) i3-2367M CPU @ 1.40GHz
Intel(R) Core(TM) i3-2367M CPU @ 1.40GHz (1396.86-MHz K8-class
CPU) Intel(R) Core(TM) i3-2367M CPU @ 1.40GHz (1396.86-MHz
K8-class CPU) Intel(R) Core(TM) i3-2367M CPU @ 1.40GHz
(1396.86-MHz K8-class CPU) Intel(R) Core(TM) i3-2367M CPU @
1.40GHz (1396.86-MHz K8-class CPU) Intel(R) Core(TM) i3-2367M
CPU @ 1.40GHz (1396.86-MHz K8-class CPU)
dev.cpu.0.temperature: 85.0C
dev.cpu.1.temperature: 84.0C
dev.cpu.2.temperature: 82.0C
dev.cpu.3.temperature: 82.0C
hw.acpi.thermal.tz0.temperature: 86.1C
vmstat -s:
597793835 cpu context switches
2381693672 device interrupts
122855844 software interrupts
579726032 traps
3573528025 system calls
27 kernel threads created
161713 fork() calls
20352 vfork() calls
1388 rfork() calls
12978505 swap pager pageins
45899170 swap pager pages paged in
8419303 swap pager pageouts
58908198 swap pager pages paged out
831874 vnode pager pageins
6078199 vnode pager pages paged in
2920 vnode pager pageouts
3047 vnode pager pages paged out
17519 page daemon wakeups
1971151967 pages examined by the page daemon
2833 clean page reclamation shortfalls
1188069623 pages reactivated by the page daemon
11764870 copy-on-write faults
9107 copy-on-write optimized faults
4009265072 zero fill pages zeroed
171247 zero fill pages prezeroed
13105889 intransit blocking page faults
812286449 total VM faults taken
12671361 page faults requiring I/O
0 pages affected by kernel thread creation
8281017 pages affected by fork()
720292 pages affected by vfork()
69400 pages affected by rfork()
507838062 pages freed
1046794713 pages freed by daemon
356505942 pages freed by exiting processes
1421501 pages active
1453434 pages inactive
74498 pages in the laundry queue
644990 pages wired down
458342 pages free
4096 bytes per page
1237090115 total name lookups
cache hits (82% pos + 4% neg) system 0% per-directory
deletions 0%, falsehits 0%, toolong 0%
Boot time : 1605600247
procs memory page disks
faults cpu0 cpu1 cpu2 cpu3 r b w avm
fre flt re pi po fr sr ad0 pa0 in sy cs us sy
id us sy id us sy id us sy id 2 0 23 115566184 1833220 198
289 3 2 124 480 0 0 579 869 145 29 7 64 30 6
64 28 7 64 29 7 64
memory info:
real memory = 17179869184 (16384 MB)
avail memory = 16495013888 (15730 MB)
last pid: 35482; load averages: 1.85, 2.59, 2.69 up
47+13:40:56 21:45:03 105 processes: 2 running, 102 sleeping,
1 zombie
Mem: 5553M Active, 5678M Inact, 291M Laundry, 2520M Wired,
1018M Buf, 1789M Free Swap: 48G Total, 7949M Used, 40G Free,
16% Inuse
hw.physmem: 17053859840
hw.usermem: 14411845632
hw.realmem: 17179869184
total used free shared
buffers cached Mem: 16210872 8563920
7646952 0 0 0 Swap: 50331644
8139880 42191764
swapinfo:
Device 1K-blocks Used Avail Capacity
/dev/ada0s1b 50331644 8139880 42191764 16%
vmstat:
procs memory page disks
faults cpu r b w avm fre flt re pi po
fr sr ad0 pa0 in sy cs us sy id 2 0 23 115566184
1833024 198 289 3 2 124 480 0 0 579 869 145
29 7 64
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