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Merge PDF files
...splitting documents page by page,
* merging documents page by page,
(and much more)
Here's a sample program that works with both versions.
#!/usr/bin/env python
import sys
try:
from PyPDF2 import PdfFileReader, PdfFileWriter
except ImportError:
from pyPdf import PdfFileReader, PdfFil...
How to concatenate a std::string and an int?
...= 21;
std::string result;
// 1. with Boost
result = name + boost::lexical_cast<std::string>(age);
// 2. with C++11
result = name + std::to_string(age);
// 3. with FastFormat.Format
fastformat::fmt(result, "{0}{1}", name, age);
// 4. with FastFormat.Write
fastformat::write(result, name, age...
MySQL CONCAT returns NULL if any field contain NULL
...
Sorry neeraj i missed the '_' between Concat and WS Please try again with CONCAT_WS().I have updated the answer please check,
– Gurmeet
Apr 1 '13 at 10:14
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What are the differences between a pointer variable and a reference variable in C++?
...t pointer's target can be replaced by taking its address and using a const cast.
A reference's target cannot be replaced in any way short of UB.
This should permit the compiler to do more optimization on a reference.
share...
Android - get children inside a View?
..., so the recursive call of getAllChildren could cause an exception, as the cast fails. So you should add a if (!(v instanceof ViewGroup)) return; before the cast
– Phil
Sep 27 '12 at 7:19
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How to check type of variable in Java?
...he datatype that the variable a was originally declared as or subsequently cast to.
boolean b = a instanceof String - will give you whether or not the actual object referred to by a is an instance of a specific class.
Again, the datatype that the variable a was originally declared as or subsequentl...
Where can I find “make” program for Mac OS X Lion?
Just upgraded my computer to Mac OS X Lion and went to terminal and typed "make" but it says:
-bash: make: command not found
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how to clear the screen in python [duplicate]
...ram in Python but I don't know how to clear the screen.
I use both Windows and Linux and I use commands to clear the screen in those, but I don't know how to do it in Python.
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How to convert an enum type variable to a string?
...of output, you can define an operator<< that takes an enum parameter and does the lookup for you.
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How to securely save username/password (local)?
...hich you need to log into first.
The account details consist of username and password, and they need to be saved locally.
It's just a matter of security, so other people using the same computer can't see everyone's personal data.
What is the best/most secure way to save this data?
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