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C++ Double Address Operator? (&&)
I'm reading STL source code and I have no idea what && address operator is supposed to do. Here is a code example from stl_vector.h :
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:first-child not working as expected
...1:first-child selector means
Select the first child of its parent
if and only if it's an h1 element.
The :first-child of the container here is the ul, and as such cannot satisfy h1:first-child.
There is CSS3's :first-of-type for your case:
.detail_container h1:first-of-type
{
color: bl...
Anonymous recursive PHP functions
Is it possible to have a PHP function that is both recursive and anonymous? This is my attempt to get it to work, but it doesn't pass in the function name.
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How to create a database from shell command?
...solution that would allow me to create database with a help of a shell command. Any hints?
8 Answers
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Changing default encoding of Python?
I have many "can't encode" and "can't decode" problems with Python when I run my applications from the console. But in the Eclipse PyDev IDE, the default character encoding is set to UTF-8 , and I'm fine.
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git diff two files on same branch, same commit
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read the answer closely. the command is diff fileA fileB not git diff fileA fileB
– Matthew Hinea
May 26 '17 at 21:49
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is of a type that is invalid for use as a key column in an index
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A unique constraint can't be over 8000 bytes per row and will only use the first 900 bytes even then so the safest maximum size for your keys would be:
create table [misc_info]
(
[id] INTEGER PRIMARY KEY IDENTITY NOT NULL,
[key] nvarchar(450) UNIQUE NOT NULL,
[v...
How to draw vertical lines on a given plot in matplotlib?
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The standard way to add vertical lines that will cover your entire plot window without you having to specify their actual height is plt.axvline
import matplotlib.pyplot as plt
plt.axvline(x=0.22058956)
plt.axvline(x=0.33088437)
p...
Window appears off screen on ubuntu [closed]
I have a dual monitor setup, and I am using Ubuntu 12.04 LTS
I have changed the positioning of the monitors several times, and now for some reason some of the windows open up off-screen (outside of both screens), Update Manager, for instance.
How can I position the windows on one of my screens?
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Converting a double to an int in C#
...le numbers, the even number is returned;
that is, 4.5 is converted to 4, and 5.5 is converted to 6.
...while the cast truncates:
When you convert from a double or float value to an integral type, the
value is truncated.
Update: See Jeppe Stig Nielsen's comment below for additional differ...