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Is main() really start of a C++ program?
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No, C++ does a lot of things to "set the environment" prior to the call of main; however, main is the official start of the "user specified" part of the C++ program.
Some of the environment setup is not controllable (like the initial code to set up std::cout; however, some of the environment...
How to run the sftp command with a password from Bash script?
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Expect is a great program to use.
On Ubuntu install it with:
sudo apt-get install expect
On a CentOS Machine install it with:
yum install expect
Lets say you want to make a connection to a sftp server and then upload a local file from your local machine to the remot...
Visual Studio Solutions Folder as real Folders
...orst things about VS. Why don't MS keep Sln folders as an option, but ALSO allow REAL folders to be added to the solution. So annoying. The File System works, why reinvent the wheel (as a square).
– MemeDeveloper
Jul 24 at 13:55
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Where do I find the definition of size_t?
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From Wikipedia
The stdlib.h and stddef.h header files define a datatype called size_t1 which is used to represent the size of an object. Library functions that take sizes expect them to be of type size_t, and the sizeof operator evaluates to size_t.
The actual type of size_t is platform-dependent;...
Java 32-bit vs 64-bit compatibility
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I accidentally ran our (largeish) application on a 64bit VM rather than a 32bit VM and didn't notice until some external libraries (called by JNI) started failing.
Data serialized on a 32bit platform was read in on the 64bit platform ...
Spring Boot JPA - configuring auto reconnect
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The above suggestions did not work for me.
What really worked was the inclusion of the following lines in the application.properties
spring.datasource.testWhileIdle = true
spring.datasource.timeBetweenEvictionRunsMillis = 3600000
spring.datasource.validationQuery = SELECT 1...
What's the easiest way to install a missing Perl module?
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On Unix:
usually you start cpan in your shell:
# cpan
and type
install Chocolate::Belgian
or in short form:
cpan Chocolate::Belgian
On Windows:
If you're using ActivePerl on Windows, the PPM (Perl Package Manager) has much of t...
Practical uses of git reset --soft?
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git reset is all about moving HEAD, and generally the branch ref.
Question: what about the working tree and index?
When employed with --soft, moves HEAD, most often updating the branch ref, and only the HEAD.
This differ from commit --ame...
GitHub Error Message - Permission denied (publickey)
...s is GitHub's recommended method.
Further, GitHub has a help page specifically for that error message, and explains in more detail everything you could check.
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Building a complete online payment gateway like Paypal [closed]
...in, but by this I dont mean a local bank branch. Each major bank will generally have a separate card acquiring arm. So here in the UK we have (eg) Natwest bank, which uses Streamline (or Worldpay) as its acquiring arm. In total even though we have scores of major banks, they all end up using one of ...