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What’s the best way to check if a file exists in C++? (cross platform)
I have read the answers for What's the best way to check if a file exists in C? (cross platform) , but I'm wondering if there is a better way to do this using standard c++ libs? Preferably without trying to open the file at all.
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Regex using javascript to return just numbers
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Syntle
4,30333 gold badges66 silver badges3131 bronze badges
answered Jul 26 '09 at 6:36
meder omuralievmeder ...
How do I concatenate two text files in PowerShell?
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173
Simply use the Get-Content and Set-Content cmdlets:
Get-Content inputFile1.txt, inputFile2.txt |...
ALTER TABLE to add a composite primary key
...y.
– Adrian Cornish
Jan 14 '12 at 1:30
37
@David: it's a single primary key composed of multiple ...
Setting up a common nuget packages folder for all solutions when some projects are included in multi
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Project A
Project B
Project C
Solutions
Solution 1
Solution 2
Solution 3
Packages (this is the common one shared by all solutions)
Updated answer as of NuGet 3.5.0.1484 with Visual Studio 2015 Update 3
This process is a bit easier now than when I originally tackled this and thought it was t...
What are Unwind segues for and how do you use them?
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answered Apr 5 '13 at 16:49
Imre KelényiImre Kelényi
21.7k55 gold badges3131 silver badges4444 bronze badges
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What are JavaScript's builtin strings?
this question is difficult to summarize in a question title
7 Answers
7
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Numpy - add row to array
... If it is a 2D-array, how can you then compare its row to a number: i < 3?
EDIT after OP's comment:
A = array([[0, 1, 2], [0, 2, 0]])
X = array([[0, 1, 2], [1, 2, 0], [2, 1, 2], [3, 2, 0]])
add to A all rows from X where the first element < 3:
import numpy as np
A = np.vstack((A, X[X[:,0]...
XMLHttpRequest cannot load file. Cross origin requests are only supported for HTTP
...mand: ipconfig and hit Enter.
Look for: IPv4 Address . . . . . . . . 12.123.123.00
There are websites that will also display your IP address
If you don't have Python, download and install it.
Using the 'Command Prompt' you must go to the folder where the files are that you want to serve as a web...
How to check command line parameter in “.bat” file?
My OS is Windows Vista. I need to have a ".bat" file where I need to check if user enters any command-line parameter or not. If does then if the parameter equals to -b then I will do something otherwise I will flag "Invalid input". If user does not enter any command-line parameter then I will d...