MATH_NUMERIC Data Type

The MATH_NUMERIC data type is commonly used to represent numeric values in JD Edwards EnterpriseOne software. This data type is defined as follows:

struct tag MATH_NUMERIC

{
   ZCHAR String [MAXLEN_MATH_NUMERIC + 1];
   BYTE  Sign;
   ZCHAR EditCode;
   short nDecimalPosition;
   short nLength;
   WORD  wFlags;
   ZCHAR szCurrency [4];
   Short nCurrencyDecimals;
   short nPrecision;
};

typedef struct tag MATH_NUMERIC MATH_NUMERIC, FAR *LPMATH_NUMERIC;

This table shows math-numeric elements and their descriptions:

MATH_NUMERIC Element	Description
String	The digits without separators
Sign	A minus sign indicates the number is negative. Otherwise, the value is 0x00.
EditCode	The data dictionary edit code used to format the number for display
nDecimalPosition	The number of digits from the right to place the decimal
nLength	The number of digits in the String
wFlags	Processing flags
szCurrency	Currency code
nCurrencyDecimals	The number of currency decimals
nPrecision	The data dictionary size

When assigning MATH_NUMERIC variables, use the MathCopy API. MathCopy copies the information, including Currency, into the location of the pointer. This API prevents any lost data in the assignment.

Initialize local MATH_NUMERIC variables with the ZeroMathNumeric API. If a MATH_NUMERIC is not initialized, invalid information, especially currency information, might be in the data structure, which can result in unexpected results at runtime.

/*************************************************
 * Variable Definitions
 *************************************************/
   MATH_NUMERIC   mnVariable  = {0};

/************************************************
 * Main Processing
 ************************************************/
   ZeroMathNumeric( &mnVariable );
   MathCopy( &mnVariable,
             &lpDS->mnVariable );