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How does std::forward work? [duplicate]
I know what it does and when to use it but I still can't wrap my head around how it works. Please be as detailed as possible and explain when std::forward would be incorrect if it was allowed to use template argument deduction.
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How do you get the list of targets in a makefile?
...t the target names, which hopefully prevents any false positives (and also does away with the unnecessary sh -c)
does not invariably target the makefile in the current directory; respects makefiles explicitly specified with -f <file>
excludes hidden targets - by convention, these are targets w...
Python module os.chmod(file, 664) does not change the permission to rw-rw-r— but -w--wx----
...he forum. However, if I give 644 in decimal, it goes to 1204 in octal. How does 1204 relate to 230 in octal?
– AplusG
Mar 25 '13 at 5:07
2
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Is an empty href valid?
...ifications.
An empty string can’t be a URI. However, the href attribute doesn’t only take URIs as value, but also URI references. An empty string may be a URI reference.
HTML 4.01
HTML 4.01 uses RFC 2396, where it says in section 4.2. Same-document References (bold emphasis mine):
A URI r...
Reducing MongoDB database file size
...has scored almost the entire disk. it was 120 GB (disk 160 GB) The compact doesn't reduce file size and repairDatabase is not possible due to lack of space . After mongodump & dropDatabase & mongorestore of db i have 40 GB of database size.
– Igor Benikov
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Preserve line endings
...of lines separated by a carriage return and a line feed character, and sed does not see the ending CR. When this option is specified, sed will open input files in binary mode, thus not requesting this special processing and considering lines to end at a line feed.`
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git rebase without changing commit timestamps
... be extra clear, in this instance, as Olivier comments:
the --ignore-date does the opposite of what I was trying to achieve!
Namely, it erases the author's timestamp and replace them with the commits timestamps!
So the right answer to my question is:
Do not do anything, since git rebase does actu...
Does ruby have real multithreading?
...erpreter for Ruby 1.9), Rubinius and IronRuby).
The first implementation doesn't actually have a name, which
makes it quite awkward to refer to it and is really annoying and
confusing. It is most often referred to as "Ruby", which is even
more annoying and confusing than having no name, because...
Adding a public key to ~/.ssh/authorized_keys does not log me in automatically
..."just 4 security" is not just for security! SSH will ignore the file if it does not have restrictive permissions.
– Navin
Oct 31 '14 at 5:54
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What does the `#` operator mean in Scala?
...'s difficult to search it(ignored by search engines), who can tell me what does it mean?"
– nafg
Sep 15 '14 at 2:25
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