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How to Test a Concern in Rails
...t I have a Personable concern in my Rails 4 application which has a full_name method, how would I go about testing this using RSpec?
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How can I force a long string without any blank to be wrapped?
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TIL there's a -hp- prefix!
– i336_
Sep 20 at 13:30
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Why does Oracle 9i treat an empty string as NULL?
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docs.oracle.com/cd/B19306_01/server.102/b14200/…
– Walter Mitty
Oct 16 '18 at 0:29
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Does Python have a package/module management system?
... manager until 2014.
Until Pip, the de facto standard was a command easy_install. It was woefully inadequate. The was no command to uninstall packages.
Pip was a massive improvement. It had most the features of Ruby's Gem. Unfortunately, Pip was--until recently--ironically difficult to install. ...
Error “gnu/stubs-32.h: No such file or directory” while compiling Nachos source code
...e files in a non standard location. You'll also need to do:
export LIBRARY_PATH=/usr/lib/$(gcc -print-multiarch)
export C_INCLUDE_PATH=/usr/include/$(gcc -print-multiarch)
export CPLUS_INCLUDE_PATH=/usr/include/$(gcc -print-multiarch)
somewhere before you build (say in your .bashrc).
If you ar...
How to calculate the CPU usage of a process by PID in Linux from C?
...rocess
pgrp pgrp of the process
sid session id
tty_nr tty the process uses
tty_pgrp pgrp of the tty
flags task flags
min_flt number of minor faults
cmin_flt number of minor faults with child's
maj_flt number of major faults
cm...
Where is the C auto keyword used?
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The page linked is outdated. Since C11, there's also _Thread_local details: en.cppreference.com/w/c/language/storage_duration and stackoverflow.com/a/14289720/6557621
– MCCCS
Jun 7 '18 at 16:02
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Simple proof that GUID is not unique [closed]
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@ErocM; See "Brane cosmology" (en.wikipedia.org/wiki/Brane_cosmology) and "Membrane (M-Theory)" (en.wikipedia.org/wiki/Membrane_(M-Theory)). The idea is if two branes touch a new universe is created. Therefore, you can infer that if two GUIDs touch, a new universe is thus created.
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What is the email subject length limit?
... many problems with the subject you set: 1. Spaces should be encoded with '_', 2. An 'encoded-word' (=?charset?Q/B?data?=) may not be more than 75 characters long (rfc2047). 3rd You can not escape new line with '=' char at the end of the line (header QP encoding is different then body QP). Bottom l...
How can I randomize the lines in a file using standard tools on Red Hat Linux?
... to Jim's answer:
My ~/.bashrc contains the following:
unsort ()
{
LC_ALL=C sort -R "$@"
}
With GNU coreutils's sort, -R = --random-sort, which generates a random hash of each line and sorts by it. The randomized hash wouldn't actually be used in some locales in some older (buggy) versions,...