What is the meaning of stdio.h,conio.h,math.h,iostrea... or when this command used in a c programming?

i want to learn programming but i dont have money.

What is the meaning of stdio.h,conio.h,math.h,iostrea... or when this command used in a c programming?
These are include files and contain the definitions of certain functions and procedures which can be used by your program. The functions themselves are then later linked into your executable. stdio contains definitions for 'standard input/output', math for mathematical functions and so on.
Reply:stdio.h and conio.h and stdlib.h are libraries...





when u enter printf and there is no stdio in your header..... the program will have an error... and will ask for a prototype..





when u enter clrscr(); (i think... haha...) and run the program.. it will have an error if you dont have a stdlib.h in your header...
Reply:These are not commands, but header file names. They follow the preprocessor command #include and are enclosed in '%26lt;%26gt;' to indicate that they are stored in the default 'include' directory of the compiler. Since you are trying to learn for free, check the URL below for free compilers, editors and articles that may help you with C, C++ and other languages as well.
Reply:Here's some quick start tutorials and information on learning C free.





Good luck!





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