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Why does GCC generate such radically different assembly for nearly the same C code?
... why they are so different, first we must understand how GCC optimizes fast_trunc_one().
Believe it or not, fast_trunc_one() is being optimized to this:
int fast_trunc_one(int i) {
int mantissa, exponent;
mantissa = (i & 0x07fffff) | 0x800000;
exponent = 150 - ((i >> 23) &...
Run an OLS regression with Pandas Data Frame
... I accidentally typed formulas instead and got weird error: TypeError: from_formula() takes at least 3 arguments (2 given)
– denfromufa
Nov 14 '16 at 18:19
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How to create a multiline UITextfield?
I am developing an application where user has to write some information. For this purpose I need a UITextField which is multi-line (in general UITextField is a single line).
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Semantic-ui vs Bootstrap [closed]
...page.
For a pre-release I admit that I'm considering to build my next web-app with such framework, but I got some perplexities:
is that mobile-first like Bootstrap or Foundation? from what I'm able to see, it doesn't look so;
Bootstrap has two valid and well-known contributors and Foundation got ...
Xcode changes unmodified storyboard and XIB files
...ibutes altered by whatever configuration the most recent file manipulator happens to be running. Synchronizing everybody's Xcode versions precisely seems to help with toolsVersion , but systemVersion changes no matter what, depending on the specific Mac and/or OS X version the developer is runnin...
Visual Studio Project vs. Solution
... of rooms, provides the means to link the rooms together and organize them appropriately.
Kind of corny but I made it up on the fly, so bear with me :)
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Best way to parse command line arguments in C#? [closed]
When building console applications that take parameters, you can use the arguments passed to Main(string[] args) .
20 Ans...
Function return value in PowerShell
... a single line.
You can read more about the return semantics on the about_Return page on TechNet, or by invoking the help return command from PowerShell itself.
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multiprocessing: sharing a large read-only object between processes?
...), and Yes in 3.8 (https://docs.python.org/3/library/multiprocessing.shared_memory.html#module-multiprocessing.shared_memory)
Processes have independent memory space.
Solution 1
To make best use of a large structure with lots of workers, do this.
Write each worker as a "filter" – reads interm...
Why can I not push_back a unique_ptr into a vector?
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You need to move the unique_ptr:
vec.push_back(std::move(ptr2x));
unique_ptr guarantees that a single unique_ptr container has ownership of the held pointer. This means that you can't make copies of a unique_ptr (because then two unique_ptrs would ...