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How many GCC optimization levels are there?
...rpret the source code of GCC 5.1
We'll try to understand what happens on -O100, since it is not clear on the man page.
We shall conclude that:
anything above -O3 up to INT_MAX is the same as -O3, but that could easily change in the future, so don't rely on it.
GCC 5.1 runs undefined behavior if you...
UIViewContentModeScaleAspectFill not clipping
I'm trying to draw some thumbnail images at a fixed size (100x100) using UIImageView . I've set the frame size of my image view to be 100x100, and set the contentMode to UIViewContentModeScaleAspectFill .
...
What is the difference between char, nchar, varchar, and nvarchar in SQL Server?
...DECLARE @T TABLE
(
C1 VARCHAR(20) COLLATE Chinese_Traditional_Stroke_Order_100_CS_AS_KS_WS,
C2 NVARCHAR(20)COLLATE Chinese_Traditional_Stroke_Order_100_CS_AS_KS_WS
)
INSERT INTO @T
VALUES (N'中华人民共和国',N'中华人民共和国'),
(N'abc',N'abc');
SELECT C1,
C2,
...
Set scroll position
...ollTop = 0;
el.scrollLeft = 0;
// To increment the scroll
el.scrollTop += 100;
el.scrollLeft += 100;
You can also mimic the window.scrollTo and window.scrollBy functions to all the existant HTML elements in the webpage on browsers that don't support it natively:
Object.defineProperty(HTMLElement...
With Mercurial, how can I “compress” a series of changesets into one before pushing?
...
Yes, you can do it with patches:
Let's assume your work is in changesets 100 through 110, inclusive
Create a patch:
% hg export -o mypatch 100:110 --git
Update to 99:
% hg update 99
Apply the patch with --no-commit (otherwise you'll get all your changesets back):
% hg import --no-commit mypat...
How to do a scatter plot with empty circles in Python?
...
Would these work?
plt.scatter(np.random.randn(100), np.random.randn(100), facecolors='none')
or using plot()
plt.plot(np.random.randn(100), np.random.randn(100), 'o', mfc='none')
share
...
Difference between declaring variables before or in loop?
...
Well I ran your A and B examples 20 times each, looping 100 million times.(JVM - 1.5.0)
A: average execution time: .074 sec
B: average execution time : .067 sec
To my surprise B was slightly faster.
As fast as computers are now its hard to say if you could accurately measure th...
What are the alternatives now that the Google web search API has been deprecated? [closed]
...ToS on my web page that every person that visits that page has to give me $10000. Can I enforce this ToS on my visitors? Will the have to may me immediately.
– InTheNameOfScience
Nov 25 '13 at 22:13
...
What's the best way to set a single pixel in an HTML5 canvas?
...
using getImageData()/putImageData() on the entire canvas; this is about 100× slower than other options.
creating a custom image using a data url and using drawImage() to show it:
var img = new Image;
img.src = "data:image/png;base64," + myPNGEncoder(r,g,b,a);
// Writing the PNGEncoder is left a...
JPA: what is the proper pattern for iterating over large result sets?
...;Model> models;
while ((models = Model.getAllModelsIterable(offset, 100)).size() > 0)
{
entityManager.getTransaction().begin();
for (Model model : models)
{
log.info("do something with model: " + model.getId());
}
entityManager.flush...