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Learning to write a compiler [closed]
...least) is to build the compiler in the two pieces described above. Specifically, you'll get a good idea of the entire process by just building the top-half.
Just doing the top half lets you get the experience of writing the lexical analyzer and the parser and go to generating some "code" (that int...
Redis - Connect to Remote Server
...ocal and non-local to the same IP should be illustrative. If it responds locally but not remotely, I'd lean toward an intervening firewall depending on the complexity of your on-node IP Tables rules.
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How can I replace a newline (\n) using sed?
...
gnu sed has an option -z for null separated records (lines). You can just call:
sed -z 's/\n/ /g'
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Mercurial: how to amend the last commit?
...s not a patch and has no
children. [...]
Clicking the button will call
'commit --amend' to 'amend' the revision.
More info about this on the THG dev channel
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Why isn't std::initializer_list a language built-in?
...ase, you already need to include a standard header in order to use this so-called "core language" feature.
Now, for initializer lists it happens that no keyword is needed to generate the object, the syntax is context-sensitive curly braces. Aside from that it's the same as type_info. Personally I d...
Is git's semi-secret empty tree object reliable, and why is there not a symbolic name for it?
...ect", 2008-02-13, Git v1.5.5-rc0 -- merge), and the function now known as oid_object_info() was taught the empty tree in c4d9986f5f ("sha1_object_info: examine cached_object store too", 2011-02-07, Git v1.7.4.1).
Note, you will see that SHA1 pop up on some GitHub repo when the author wants it...
Is it safe to use -1 to set all bits to true?
...ituation where you care about the size of the variable anyway, which would call for something like boost::uint16_t, etc.
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best way to add license section to iOS settings bundle
...the script
Edit your settings bundle Root.plist to include a child section called 'Acknowledgements'
Here's the script:
#!/usr/bin/perl -w
use strict;
my $out = "../Settings.bundle/en.lproj/Acknowledgements.strings";
my $plistout = "../Settings.bundle/Acknowledgements.plist";
unlink $out;
op...
Why is transposing a matrix of 512x512 much slower than transposing a matrix of 513x513?
...rmula:
set = ( address / lineSize ) % numberOfsets
This sort of formula ideally gives a uniform distribution across the sets, because each memory address is as likely to be read (I said ideally).
It's clear that overlaps can occur. In case of a cache miss, the memory is read in the cache and the...
java.util.Date vs java.sql.Date
...ons, you've hit my favorite pet peeve with JDBC: Date class handling.
Basically databases usually support at least three forms of datetime fields which are date, time and timestamp. Each of these have a corresponding class in JDBC and each of them extend java.util.Date. Quick semantics of each of t...