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Programmatically access currency exchange rates [closed]
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another very great free and opensource link is this:
https://raw.github.com/currencybot/open-exchange-rates/master/latest.json
(I found about it here: http://josscrowcroft.github.com/open-exchange-rates/)
[Update]:
Open Exchange Rates projec...
How can I find out the total physical memory (RAM) of my linux box suitable to be parsed by a shell
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cat /proc/meminfo | grep MemTotal or free gives you the exact amount of RAM your server has. This is not "available memory".
I guess your issue comes up when you have a VM and you would like to calculate the full amount of memory hosted by the hypervisor but yo...
How to convert CFStringRef to NSString?
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NSString and CFStringRef are "Toll free bridged", meaning that you can simply typecast between them.
For example:
CFStringRef aCFString = (CFStringRef)aNSString;
works perfectly and transparently. Likewise:
NSString *aNSString = (NSString *)aCFString;
T...
delete vs delete[] operators in C++
... have an array like I do, you need to iterate through the array and delete/free each element, then delete/free the strArray itself. Using "delete[]" on the array I have does not work since (as pointed out by the above comments and answer), IT CALLS DESTRUCTORS, it doesn't actually free each slot.
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What online brokers offer APIs? [closed]
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Alpace (alpaca.markets) is free and it has free integration for Market data feed with IEX and Polygon (polygon.io) for free for US Markets as of this writing. (And more cool api will come in the near future). I request moderator to reopen this question...
Good tool to visualise database schema? [closed]
...ks with a variety of databases including SQLite, and their EULA allows the free version to be used for commercial projects.
– Aralox
Jul 29 '16 at 5:05
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Is there a good jQuery Drag-and-drop file upload plugin? [closed]
...efox. Degrades to normal upload button under IE. (but therefore it's flash-free...)
– Frank Nocke
Apr 12 '11 at 8:56
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What exactly are “spin-locks”?
...her process, then that second process must be given a chance to run and to free the resource. or, running the second process requires preempting the first (spinning) process.
– user1284631
Nov 20 '12 at 10:52
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Using regular expressions to parse HTML: why not?
...Regular expressions can only match regular languages but HTML is a context-free language and not a regular language (As @StefanPochmann pointed out, regular languages are also context-free, so context-free doesn't necessarily mean not regular). The only thing you can do with regexps on HTML is heuri...
Django development IDE [closed]
...oing noncommercial development can use all of their professional tools for free for a year (pretty sure this can be renewed, however). A great way to get a taste before you buy the full license. jetbrains.com/student
– dcgoss
Aug 15 '15 at 18:54
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