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// FunctionName : StringToInt
//
// Author: Tony Nicol
//
// Description: This function is used to convert a string of chars … etc. Provide 
// details of the workings of the function.
//
// Parameters:
// [in]
//      const char : *InValStr : String to be converted.  This should not be modified.
//      eBase Base : Number base of string.  
//
// [out]
//      int *ErrorVal : Passed back to user after conversion.  0 if no problems or
//                      one of the following to indicate type of error to the user:
//                      NULL_STRING    Null string passed in arg 1
//                      OVERFLOW       Overflow occured during conversion
//                      INVALID_DIGIT  At least 1 digit in the string is invalid
//
// Returns
//      int : integer after conversion from string
//
// Calls
//    IsBin()  : Pass addr of a char and convert it to an int. Ret True if valid
//    IsDec()  : Pass addr of a char and convert it to an int. Ret True if a valid
//    IsHex()  : Pass addr of a char and convert it to an int. Ret True if a valid
//
// Globals
//      None
//
// Mod State:
//
// 29-09-03 [A.N] Modified this header for 2003/2004 notes.

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