How to Master the Filestream in C#

We live in a world that moves fast. Compared to the mid 90s through early 2000s, we have incredibly intelligent technology. Effectively, we have super-computers in our pockets. Our actual, modern supercomputers would have seemed like works of fiction just two decades ago. Not only is our ability to compute fast, but so is our data - with cellular 4G averaging 18.1 Mbps and 5G coming in at an average of 111.8 Mbps, at the time of writing this.

With all this speed, there has been abstraction after abstraction placed on top of our data and connections to make development easier, but there is a cost to that ease. We send a lot of data over the wire. For all of the assets on a webpage, websites targeting desktops send almost 2.1Mb of data, while mobile sends nearly 1.9Mb. These speeds were not always this ubiquitous. Perhaps it’s time to look back at how applications were able to provide relatively fast interaction with data in a world long forgotten: The world of 56Kbps.

My goal is that, by the end of this article, you have a stronger understanding of some of the low level APIs that make moving large amounts of data possible. Additionally, we’re going to use this knowledge to make a secure streaming service from Amazon Web Services S3 that will let us restrict data to certain roles. We’ll do this using the smallest instance available on AWS, demonstrating the power of streams to move big data with small machines.

To follow along with this guide you’ll need these prerequisites:

• Basic knowledge of .NET
• Visual Studio Code or Visual Studio 2019
• An Okta Developer Account (free forever, to handle your OAuth needs)
• An AWS account (we’ll be using a free tier product)
• AWS Toolkit for Visual Studio

#c #c# #c++ #programming-c

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How to Master the Filestream in C#

We live in a world that moves fast. Compared to the mid 90s through early 2000s, we have incredibly intelligent technology. Effectively, we have super-computers in our pockets. Our actual, modern supercomputers would have seemed like works of fiction just two decades ago. Not only is our ability to compute fast, but so is our data - with cellular 4G averaging 18.1 Mbps and 5G coming in at an average of 111.8 Mbps, at the time of writing this.

With all this speed, there has been abstraction after abstraction placed on top of our data and connections to make development easier, but there is a cost to that ease. We send a lot of data over the wire. For all of the assets on a webpage, websites targeting desktops send almost 2.1Mb of data, while mobile sends nearly 1.9Mb. These speeds were not always this ubiquitous. Perhaps it’s time to look back at how applications were able to provide relatively fast interaction with data in a world long forgotten: The world of 56Kbps.

My goal is that, by the end of this article, you have a stronger understanding of some of the low level APIs that make moving large amounts of data possible. Additionally, we’re going to use this knowledge to make a secure streaming service from Amazon Web Services S3 that will let us restrict data to certain roles. We’ll do this using the smallest instance available on AWS, demonstrating the power of streams to move big data with small machines.

To follow along with this guide you’ll need these prerequisites:

• Basic knowledge of .NET
• Visual Studio Code or Visual Studio 2019
• An Okta Developer Account (free forever, to handle your OAuth needs)
• An AWS account (we’ll be using a free tier product)
• AWS Toolkit for Visual Studio

#c #c# #c++ #programming-c

How to Run C/C++ in Sublime Text?

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++

Dicey Issues in C/C++

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:

1. Using multiple variables in the print function
2. Comparing Signed integer with unsigned integer
3. Putting a semicolon at the end of the loop statement
4. C preprocessor doesn’t need a semicolon
5. Size of the string matters
6. Macros and equations aren’t good friends
7. Never compare Floating data type with double data type
8. Arrays have a boundary
9. Character constants are different from string literals
10. Difference between single(=) and double(==) equal signs.

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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.

1. %d indicates Integer Format Specifier
2. %f indicates Float Format Specifier
3. %c indicates Character Format Specifier
4. %s indicates String Format Specifier
5. %u indicates Unsigned Integer Format Specifier
6. %ld indicates Long Int Format Specifier

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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

Loops in C++ | For, While, and Do While Loops in C++

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

Using isdigit() in C/C++

In this article, we’ll take a look at using the isdigit() function in C/C++. This is a very simple way to check if any value is a digit or not. Let’s look at how to use this function, using some simple examples.

#c programming #c++ #c #c#