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Is optimisation level -O3 dangerous in g++?
...e of mine), that compiling with an optimisation level of -O3 in g++ is somehow 'dangerous', and should be avoided in general unless proven to be necessary.
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The thread has exited with code 0 (0x0) with no unhandled exception
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This is just debugging message. You can switch that off by right clicking into the output window and uncheck Thread Exit Messages.
http://msdn.microsoft.com/en-us/library/bs4c1wda.aspx
In addition to program out from your application, the Outp...
An “and” operator for an “if” statement in Bash
...g to create a simple Bash script to check if the website is down and for some reason the "and" operator doesn't work:
4 Ans...
How do you remove the root CA certificate that fiddler installs
...ick the "Actions" button and then "Reset All Certificates"
It will popup a message that it could take a while but it's really quick. Approve all popups and there you go.
Pay attention not to re-approve the certificate again (when I did it the message for approving the certificates popped up when I f...
jQuery UI accordion that keeps multiple sections open?
...ns in jQuery UI's accordion open? The demos all have only one open at a time... I'm looking for a collapseable menu type system.
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What is the relationship between the docker host OS and the container base image OS?
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As mentioned by BraveNewCurrency, the only relationship between the host OS and the container is the Kernel.
It is one of the main difference between docker and 'regular' virtual machines, there is no overhead, everything takes...
@Basic(optional = false) vs @Column(nullable = false) in JPA
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Gordon Yorke (EclipseLink Architecture Committee Member, TopLink Core Technical Lead, JPA 2.0 Expert Group Member) wrote a good answer on this topic so instead of paraphrasing him, I'll quote his answer:
The difference between optional and
nullable is the scope at whi...
curl -GET and -X GET
Curl offers a series of different http method calls that are prefixed with a X, but also offers the same methods without. I've tried both and I can't seem to figure out the difference. Can someone explain to me quickly how these two operations differ?
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ERROR: permission denied for sequence cities_id_seq using Postgres
...currval and nextval functions.
Also as pointed out by @epic_fil in the comments you can grant permissions to all the sequences in the schema with:
GRANT USAGE, SELECT ON ALL SEQUENCES IN SCHEMA public TO www;
share
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How to generate a random alpha-numeric string?
... looking for a simple Java algorithm to generate a pseudo-random alpha-numeric string. In my situation it would be used as a unique session/key identifier that would "likely" be unique over 500K+ generation (my needs don't really require anything much more sophisticated).
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