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Setting environment variables via launchd.conf no longer works in OS X Yosemite/El Capitan/macOS Sie
...dit]: A user below mentions that this did not work for him. However I have tested on multiple Yosemite machines and it does work for me. If you are having a problem, remember that you will need to restart applications for this to take effect. Additionally if you set variables in the terminal via ~/....
What is the function of the push / pop instructions used on registers in x86 assembly?
... stored.
Ideally, all variables would fit into registers, which is the fastest memory to access (currently about 100x faster than RAM).
But of course, we can easily have more variables than registers, specially for the arguments of nested functions, so the only solution is to write to memory.
We ...
Evaluating a mathematical expression in a string
... "sgn": lambda a: abs(a) > epsilon and cmp(a, 0) or 0}
def evaluateStack(self, s):
op = s.pop()
if op == 'unary -':
return -self.evaluateStack(s)
if op in "+-*/^":
op2 = self.evaluateStack(s)
op1 = self.evaluateStack(s)
...
C++ Modules - why were they removed from C++0x? Will they be back later on?
...ion have been published by WG21 on open-std.org. I will link only to the latest documents here:
Working Draft, Extensions to C++ for Modules N4610 (October 2016).
Fourth revision published as P0142R0 (March 2016).
Wording for Modules published as P0143R2 (March 2016).
The clang team has published ...
Why create “Implicitly Unwrapped Optionals”, since that implies you know there's a value?
... if a variable is nil when accessed, it would be a waste of time to bother testing it for nil. Normally if you have a condition that must absolutely be true for your app to continue running, you would use an assert. An Implicitly Unwrapped Optional has an assert for nil built right into it. Even the...
Can I unshelve to a different branch in tfs 2008?
...he sourcecontrol be sure to verify the path is correct for the new branch.
Test - and then checkin the new files
Important: I've found that if you don't first take TFS offline then you'll end up with any new files (from your unshelves changeset) showing without a little red check mark and you'll h...
Should one call .close() on HttpServletResponse.getOutputStream()/.getWriter()?
...ally happening, but I guess that out.close() prevents the error handling.
Tested with Tomcat 7.0.50, Java EE 6 using Netbeans 7.4.
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What is a stream?
...nging UNIX linefeeds to DOS ones, or whatever). Pipes are another thorough test of the metaphor: that's where you create a pair of streams such that anything you write into one can be read out of the other. Think wormholes :-)
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What's the difference between returning void and returning a Task?
...completed too early.
Another context is the AsyncContext I wrote for unit testing (available here) - the AsyncContext.Run method tracks the outstanding operation count and returns when it's zero.
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What is the bower (and npm) version syntax?
...r calculator you can play with, making all of this much easier to grok and test.
SemVer isn't just a syntax! It has some pretty interesting things to say about the right ways to publish API's, which will help to understand what the syntax means. Crucially:
Once you identify your public API, yo...