C Language Blackjack



  1. C# Blackjack Game
  2. Blackjack C++ Program

Implementing blackjack in C can be a big task. Since the game involves players, a deck of cards and the house, we have to break down the code into smaller parts. This is where we use the power of C’s object orientated abilities to implement classes. Add each player to a List as this will keep each Player object to allow more than just two players as you can include the Dealer as a Player. Also try to seperate your class rather than having multiple internal classes. It makes an easier read and makes navigation easier.

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C Language Blackjack

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  • Sign in or Register if you don't have an account
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CLASSIC BLACKJACK RULES:
  • Blackjack pays 3 to 2
  • No insurance; Dealer stands on all 17s
  • Double on 9, 10, 11
  • No Doubling after Split; No Resplitting

We are very much familiar with the flow control in C where it follows the Top-Down approach, and when we are writing a C program and if we are using any function, we might have come across a very common error ‘Implicit declaration of function’.

Now why this error occurred? The answer is already in the error.

We have used a function in our program which is not declared yet or we can say that we have used a function implicitly.

Implicit declaration of the function is not allowed in C programming. Every function must be explicitly declared before it can be called.

In C90, if a function is called without an explicit declaration, the compiler is going to complain about the implicit declaration.

Here is a small code that will give us an Implicit declaration of function error.

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10
main.c:6:45:warning:implicit declaration of function
[-Wimplicit-function-declaration]
printf('The value of %d + %d is %d',a,b,addTwo(10...
1warning generated.
main.c:(.text+0x38): undefined reference to `addTwo'
:error:linker command failed with exit code1(use-vto see invocation)

Here are some of the reasons why this is giving error.

  1. Using a function that is pre-defined but you forget to include the header file for that function.
  2. If you are using a function that you have created but you failed to declare it in the code. It’s better to declare the function before the main.

In C90, this error can be removed just by declaring your function before the main function.

For example:

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main.c:6:45:warning:implicit declaration of function
[-Wimplicit-function-declaration]
printf('The value of %d + %d is %d',a,b,addTwo(10...
1warning generated.
The value of10+20is30

Here you can see that our code is working fine and a warning is generated but we are good to go but this is not recommended.

Well, this was all about the Implicit declaration of the function in C and the error related to it. If you stuck into any kind of error, don’t forget to google it and try to debug it on your own. This will teach you how to debug on your own as someone might have faced a similar problem earlier.

C Language Blackjack

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If you still don’t find any solution for your problem, you can ask your doubt in the comment’s section below and we’ll get back to you🤓.

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Blackjack C++ Program

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