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Building a Programming Language: Part II (Adding Conditions, Loop and Blocks to BrainLess)

, 11 Oct 2013 LGPL3
In this article, we will discuss implementing conditional statements, loops and blocks.
#ifndef __BRAINLESS_INTERFACE__
#define __BRAINLESS_INTERFACE__
/*
Author : Shakti Misra
All are welcome to use these files, distribute, modify and release. But This notice should be included.
This software is given as is, for use and modification.
*/
#include <stdio.h>
#include <stdarg.h>
#include "constNDefs.h"

#ifdef WINPLATFORM
#include <conio.h>
#endif

class IOInterface
{
public:
    IOInterface(){}
    ~IOInterface(){}

    int getChar()
#if !defined( WINPLATFORM )
    {return getchar();}
#else
    {return _getch();}
#endif
    int putStringOnScreen(const char* str)
    {return puts(str);}
    int printToScreen(const char* str, ...)
    {
        int rcode = 0;
        va_list argptr = {0};
        va_start(argptr, str);
        /*for now we know we only have 2 parameters, so no need to parse and know.*/
        rcode = printf(str, va_arg(argptr, ulong), va_arg(argptr, char));
        va_end(argptr);
        return rcode;
    }
};


#endif //__BRAINLESS_INTERFACE__

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License

This article, along with any associated source code and files, is licensed under The GNU Lesser General Public License (LGPLv3)

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About the Author

BrainlessLabs.com
Engineer
India India
I like to explore different aspects of technology. Try new things, and get delighted. My interests are programming language, and Imaging. But its not hard to work on other things also. Algorithms delight me over a coffee break.
 
I basically code in C++, but JAVA is not so alien for me. I know few scripting languages also. Basically I feel that knowing a programing language is just a matter of getting introduced to it.
 
For my other articles check my blog on homepage:
 
http://brainlesslabs.com/
 
https://github.com/BrainlessLabs
 
http://www.luxrender.net/en_GB/authors_contributors - SMISRA
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