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PHP: exceptions vs errors?

... Exceptions are thrown - they are intended to be caught. Errors are generally unrecoverable. Lets say for instance - you have a block of code that will insert a row into a database. It is possible that this call fails (duplicate ID) - you will want to have a "Error" which in this case is an "Exc...
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When do we need curly braces around shell variables?

...xpand the variable identified by foobar. Curly braces are also unconditionally required when: expanding array elements, as in ${array[42]} using parameter expansion operations, as in ${filename%.*} (remove extension) expanding positional parameters beyond 9: "$8 $9 ${10} ${11}" Doing this every...
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Why does C++11 not support designated initializer lists as C99? [closed]

... named function arguments. But as of right now, name arguments don't officially exist. See N4172 Named arguments for a proposal of this. It would make code less error prone and easier to read. – David Baird Nov 29 '15 at 15:11 ...
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Why are unnamed namespaces used and what are their benefits?

...ng directive already took place. This means you can have free functions called (for example) help that can exist in multiple translation units, and they won't clash at link time. The effect is almost identical to using the static keyword used in C which you can put in in the declaration of identif...
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Margin while printing html page

... inside the printable area. You should also be aware that IE7++ automatically adjusts the size to best fit, and causes everything to be wrong even if you use cm or mm. To override this behaviour, the user must select 'Print preview' and then set the print size to 100% (default is Shrink To Fit). ...
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Trying to login to RDP using AS3

...emporary ByteArray that has its endian set to big, write data in it, then call writeBytes() on your main buffer array, then clear the temporary big endian array. Writing constants can be done manually, since you can shift the byte order yourself, say when you are writing 0x0005 in big endian as shor...
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How to remove only underline from a:before?

... say: When specified on or propagated to an inline element, it affects all the boxes generated by that element, and is further propagated to any in-flow block-level boxes that split the inline (see section 9.2.1.1). […] For all other elements it is propagated to any in-flow children. Note that...
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Sleep until a specific time/date

... Thanks for that, I wrote a small shell-script to get a "sleepuntil" command. – theomega Mar 14 '09 at 15:20 1 ...
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How to list all tags along with the full message in git?

I want git to list all tags along with the full annotation or commit message. Something like this is close: 8 Answers ...
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Dependency Inject (DI) “friendly” library

... This is actually simple to do once you understand that DI is about patterns and principles, not technology. To design the API in a DI Container-agnostic way, follow these general principles: Program to an interface, not an implementati...