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How to retrieve all keys (or values) from a std::map and put them into a vector?
...vel of your fellow programmers. Additionally, it moves functionality away from the call site. Which can make maintenance a little more difficult.
I'm not sure if your goal is to get the keys into a vector or print them to cout so I'm doing both. You may try something like this:
std::map<int, i...
Setting Django up to use MySQL
I want to move away from PHP a little and learn Python. In order to do web development with Python I'll need a framework to help with templating and other things.
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Get path from open file in Python
...h is still the correct file path. If I specify the filename as 'text.txt' from directory '~/Documents/' and then change directories to '~/', os.path.realpath will return '~/text.txt' instead of '~/Documents/text.txt'.
– K. Nielson
Jan 16 '19 at 21:08
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rgdal package installation
...on CRAN, you will see the following :
SystemRequirements: for building from source: GDAL >= 1.7.1 library
from http://trac.osgeo.org/gdal/wiki/DownloadSource and PROJ.4 (proj >= 4.4.9) from http://trac.osgeo.org/proj/; GDAL OSX frameworks built by William Kyngesburye at http://www.kyngch...
How does Go compile so quickly?
...erating system has to load the whole VM, then they have to be JIT-compiled from bytecode to native code, all of which takes some time.
Speed of compilation depends on several factors.
Some languages are designed to be compiled fast. For example, Pascal was designed to be compiled using a single-pa...
Node.js + Nginx - What now?
... res.writeHead(200, {'Content-Type': 'text/plain'});
res.end('Hello from app1!\n');
}).listen(3000, "127.0.0.1");
console.log('Server running at http://127.0.0.1:3000/');
node app2.js
var http = require('http');
http.createServer(function (req, res) {
res.writeHead(200, {'Content-Type'...
Get timezone from DateTime
...on associated with a DateTime value via some external mechanism.
A quote from an excellent article here.
A must read for every .Net developer.
So my advice is to write a little wrapper class that suits your needs.
share
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Adding an arbitrary line to a matplotlib plot in ipython notebook
...th=2)
(of course you can choose the color, line width, line style, etc.)
From your example:
import numpy as np
import matplotlib.pyplot as plt
np.random.seed(5)
x = np.arange(1, 101)
y = 20 + 3 * x + np.random.normal(0, 60, 100)
plt.plot(x, y, "o")
# draw vertical line from (70,100) to (70, 25...
Hiding user input on terminal in Linux script
...choes silently". ss64.com/bash/read.html Silent mode. If input is coming from a terminal, characters are not echoed.
– Andreas Wong
Oct 7 '15 at 3:45
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How can I disable the Maven Javadoc plugin from the command line?
...
this is not properly from command line as required by the question, but it works great if you need to disable permanently the javadoc.
– Lorenzo Sciuto
Apr 9 '18 at 9:41
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