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In example below, we are going to use pcntl_signal
function to let our command finish its job first and then exit. It is useful for preventing unexpected terminations which originate from ctrl+c
action and kill PID
command. We’ll be using a symfony command as an example.
I will just print a message but you could use it for closing database connection, saving data, closing files, writing to a log file etc.
#php #symfony
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C and C++ are the most powerful programming language in the world. Most of the super fast and complex libraries and algorithms are written in C or C++. Most powerful Kernel programs are also written in C. So, there is no way to skip it.
In programming competitions, most programmers prefer to write code in C or C++. Tourist is considered the worlds top programming contestant of all ages who write code in C++.
During programming competitions, programmers prefer to use a lightweight editor to focus on coding and algorithm designing. Vim, Sublime Text, and Notepad++ are the most common editors for us. Apart from the competition, many software developers and professionals love to use Sublime Text just because of its flexibility.
I have discussed the steps we need to complete in this blog post before running a C/C++ code in Sublime Text. We will take the inputs from an input file and print outputs to an output file without using freopen
file related functions in C/C++.
#cpp #c #c-programming #sublimetext #c++ #c/c++
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If you are familiar with C/C++then you must have come across some unusual things and if you haven’t, then you are about to. The below codes are checked twice before adding, so feel free to share this article with your friends. The following displays some of the issues:
The below code generates no error since a print function can take any number of inputs but creates a mismatch with the variables. The print function is used to display characters, strings, integers, float, octal, and hexadecimal values onto the output screen. The format specifier is used to display the value of a variable.
A signed integer is a 32-bit datum that encodes an integer in the range [-2147483648 to 2147483647]. An unsigned integer is a 32-bit datum that encodes a non-negative integer in the range [0 to 4294967295]. The signed integer is represented in twos-complement notation. In the below code the signed integer will be converted to the maximum unsigned integer then compared with the unsigned integer.
#problems-with-c #dicey-issues-in-c #c-programming #c++ #c #cplusplus
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So you’ve heard of the Open/Closed principal of SOLID — and Command Query Separation. But you’re not completely onboard with how to actually do this in practice.
Also, you’re aware that it’s considered a violation of OCP if you have to modify an existing class to accommodate new behaviour. The desired action would be to just create a new class that implements the new behaviour or functionality you’d like to add to the application.
In this article we’ll achieve the following
#c #c# #c++ #programming-c
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In your C programs, you might have the need to accept parameters from the command line when the command launches.
For simple needs, all you need to do to do so is change the main() function signature from
int main(void)
to
int main (int argc, char *argv[])
argc is an integer number that contains the number of parameters that were provided in the command line.
argv is an array of strings.
#c #c# #c++ #programming-c
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In this Video We are going to see how to use Loops in C++. We will see How to use For, While, and Do While Loops in C++.
C++ is general purpose, compiled, object-oriented programming language and its concepts served as the basis for several other languages such as Java, Python, Ruby, Perl etc.
#c #c# #c++ #programming-c