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Is #pragma once a safe include guard?

... on using #pragma once as opposed to include guards is to avoid copy/paste errors. Let's face it: most of us hardly start a new header file from scratch, but rather just copy an existing one and modify it to our needs. It is much easier to create a working template using #pragma once instead of inc...
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How to add multiple columns to a table in Postgres?

... Ouch... Neither of the syntaxes above work in Redshift :-( I get errors: ERROR: syntax error at or near "," LINE 1: ALTER TABLE x ADD COLUMN col1 int, ADD COLUMN colX int – Doug P Nov 18 '19 at 23:01 ...
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Python mysqldb: Library not loaded: libmysqlclient.18.dylib

... I had installed mysql55 via MacPorts and to solve this error did: sudo ln -s mysql/libmysqlclient.18.dylib /opt/local/lib/mysql55/libmysqlclient.18.dylib – philfreo May 16 '12 at 20:12 ...
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MacOSX homebrew mysql root password

...refix mysql)/bin/mysqladmin -u root password NEWPASS I have had the same error and fixed it this way. share | improve this answer | follow | ...
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When is TCP option SO_LINGER (0) required?

...is a bad solution as it causes the TCP connection to be terminated with an error. Instead, design your application protocol so the connection termination is always initiated from the client side. If the client always knows when it has read all remaining data it can initiate the termination sequence...
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Assert an object is a specific type

...erAssert.assertThat behaves better (provides better logging in the case of errors) than Assert.assertThat. I recommend using it instead. hamcrest.org/JavaHamcrest/javadoc/1.3/org/hamcrest/… – John B Sep 13 '12 at 11:15 ...
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Git clone particular version of remote repository

...' -n1)" # Failing control without feature. cd ../local # Does not give an error, but does not fetch either. git fetch origin "$SHA3" # Error. git checkout "$SHA3" # Enable the feature. cd ../server git config uploadpack.allowReachableSHA1InWant true # Now it works. cd ../local git fetch origin "$...
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What's the u prefix in a Python string?

...rom Google Search. I'm trying to write this data to a file, I'm getting an error, and I need the dead simplest, probably flawed, solution this second. A: You should really read Joel's Absolute Minimum Every Software Developer Absolutely, Positively Must Know About Unicode and Character Sets (No Exc...
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How to delete images from a private docker registry?

... Getting unsupported error. I have given proper digest value as the reference. – Winster Feb 22 '18 at 6:36 ...
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ASP.NET MVC on IIS 7.5

... Another reason why someone might get this error is if the file Global.asax is not in the root folder anymore. share | improve this answer | f...