Types of errors

Different types of errors:

Error is a mistake or bug, which can be associated with programmer in

program, common programming errors in C can be classified into 3 types:

1. compilation errors.(syntax errors)

2. linker errors.

3. logical errors.

Compilation(syntax ) errors: these are raised when we compile the

program and can be located and corrected easily. Most common

compilation or syntax errors are.

· Undefined variable

· Redeclaration of variable

· Unterminated string character

· Missing semicolon ;

· Function call missing ( ,;”)

· Function should have prototype.

Linker errors: the program must be linked to the ‘C’ library. If it fails in

such case these errors are raised . most common errors are:

· Unable to link cos.obj

· Undefined symbol

Logical ( run time) errors: these are raised because of the due to logical

inefficiency. We can know them when program gets executed. It is very

difficult to locate them, most common logical errors are:

· Divide by zero

· Floating point error

· Null value

· Garbage result in printing.