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Useful GCC flags for C
...types.
-Wstrict-overflow=5: warns about cases where the compiler optimizes based on the assumption that signed overflow does not occur. (The value 5 may be too strict, see the manual page.)
-Wwrite-strings: give string constants the type const char[length] so that copying the address of one into a ...
Is there a NumPy function to return the first index of something in an array?
...
Just to add a very performant and handy numba alternative based on np.ndenumerate to find the first index:
from numba import njit
import numpy as np
@njit
def index(array, item):
for idx, val in np.ndenumerate(array):
if val == item:
return idx
# If no ...
HTML table with 100% width, with vertical scroll inside tbody [duplicate]
...body { display: block; }
tbody {
height: 100px; /* Just for the demo */
overflow-y: auto; /* Trigger vertical scroll */
overflow-x: hidden; /* Hide the horizontal scroll */
}
Web browsers display the thead and tbody elements as row-group (table-header-group and t...
Generating random strings with T-SQL
...is to compute @dice = rand(@seed) * len(@specials)+1 to make the indexes 1 based.
– Remus Rusanu
Feb 17 '16 at 13:42
T...
How to stage only part of a new file with git?
...t hash-object -w /dev/null) newfile
git add --interactive newfile
Simple demo:
mkdir /tmp/demo
cd /tmp/demo
git init .
echo hello > newfile
git update-index --add --cacheinfo 100644 $(git hash-object -w /dev/null) newfile
Hint If you're sure the 'empty' blob already exists in your git obje...
Asynchronous Process inside a javascript for loop [duplicate]
...
The ECMAScript example is a very good one to demonstrate what let can do.
– hazelnut
Jan 14 '16 at 4:00
1
...
Git status shows files as changed even though contents are the same
... answered Dec 28 '12 at 13:30
Demo_SDemo_S
62155 silver badges77 bronze badges
...
What is the easiest way to disable/enable buttons and links (jQuery + Bootstrap)
...hor tag property, so that shouldn't be used. The click event I've given is based upon the .disabled class, but what you can use is hasClass('disabled') - if that is true, preventDefault.
– James Donnelly
May 28 '13 at 11:35
...
Auto-center map with multiple markers in Google Maps API v3
...translate between lat/lon and pixel coordinates. The pixel coordinates are based on a plane of the entire world fully zoomed in, but you can then find the center of that and switch it back into lat/lon.
var HALF_WORLD_CIRCUMFERENCE = 268435456; // in pixels at zoom level 21
var WORLD_RADIUS =...
MFC学习总结 (90个技巧) dlg 上建立View - C/C++ - 清泛网 - 专注C++内核技术
...在class type里选择Generic Class，在Name栏里输入新类的名字，Base class里输入CToolBar),创建成功后在该类里创建要增加的控件的对象，如：
CComboBox""m_wndMyCombo;
CStatic""m_wndCategory, m_wndCategoryPath;
CButton""m_wndOpenButton;
Cedit"""m_wndEdit;
然...