can i use TYPEDEF keywordin the header file as i m using KEIL microvision3 c51 compiler
"i be sometime making mistake with code for the enlgish is verrry difucilt as me"
People can understand that English is not your native language, and make allowances. But Compilers have no such understanding, and make no such allowances.
The compiler insists that eveyone sticks exactly and precisely to the rules of the 'C' programming language - including things like spelling the keywords correctly, using the correct UPPER/lower case, using the correct punctuation (semicolons, etc), etc, etc...
Hint: to avoid introducing further errors when you post code on the forum, do not manually re-type it - use Copy and Paste instead.
Also, please look at the instructions for posting source code: www.danlhenry.com/.../keil_code.png http://www.keil.com/forum/tips.asp
And remember to check it carefully in the Preview before you press the 'Post' button...