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Source code for printf, scanf, cin, cout?
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dennis richie made c language with only 32 keywords all the functions and statements are to be created by the programer. if so wher is the source code of "printf" "scanf" "cin" "cout" ?
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They're found in the source code of a language implementation. That is, Borland C/C++, Microsoft Visual C++, Dev-C++, gnu, etc. (And the implementation of the C or C++ language may itself not be in C or C++.)
What you get when you use C or C++ is a defined interface that will make available to you a function printf that will behave in a well-defined manner. Whether the actual source of printf is written in C or assembly or Pascal or whatever is not supposed to matter.
What you get when you use C or C++ is a defined interface that will make available to you a function printf that will behave in a well-defined manner. Whether the actual source of printf is written in C or assembly or Pascal or whatever is not supposed to matter.
"One of the methods used by statists to destroy capitalism consists in establishing controls that tie a given industry hand and foot, making it unable to solve its problems, then declaring that freedom has failed and stronger controls are necessary." --Ayn Rand
hi all,
can any one help yar its very urgent ............
where is the code for printf and scanf fucntions...
how they will work
can any one help yar its very urgent ............
where is the code for printf and scanf fucntions...
how they will work
Maybe this will help you understand.
Don't be afraid next time of creating a new thread when you want to ask something. People frown upon old threads that get bumped to a current active state.
Don't be afraid next time of creating a new thread when you want to ask something. People frown upon old threads that get bumped to a current active state.
Last edited by Aia; Feb 17th, 2008 at 12:03 pm.
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Originally Posted by sriz6teen 
where is the code for printf and scanf fucntions...
http://www.koders.com/c/fid4E0FA7894...px?s=printf#L7
That one is the GNU C's implementation. I think you probably find your way from there on to scanf. And doing a google on the file name gives more results I bet.
Last edited by mitrmkar; Feb 17th, 2008 at 1:06 pm.
Why not run your code via the debugger and when you get to the printf function step into the function. If on your machine your compiler has the full source code for the libraries (i.e. Win SDK), then you should find the code.
Maybe.
Maybe.
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