The decimal library functions

You must perform all operations on decimal type numbers through the following library functions for the decimal data type. Any other operations, modifications, or analyses can produce unpredictable results.

Table 1. Manipulation functions

Function name	Description	See
decadd()	Adds two decimal numbers	The decadd() function
deccmp()	Compares two decimal numbers	The deccmp() function
deccopy()	Copies a decimal number	The deccopy() function
decdiv()	Divides two decimal numbers	The decdiv() function
decmul()	Multiplies two decimal numbers	The decmul() function
decround()	Rounds a decimal number	The decround() function
decsub()	Subtracts two decimal numbers	The decsub() function
dectrunc()	Truncates a decimal number	The dectrunc() function

Table 2. Type conversion functions

Function name	Description	See
deccvasc()	Converts a C char type value to a decimal type value	The deccvasc() function
deccvdbl()	Converts a C double type value to a decimal type value	The deccvdbl() function
deccvint()	Converts a C int type value to a decimal type value	The deccvint() function
deccvlong()	Converts a C 4-byte integer type value to a decimal type value	The deccvlong() function
dececvt()	Converts a decimal value to an ASCII string	The dececvt() and decfcvt() functions
decfcvt()	Converts a decimal value to an ASCII string	The dececvt() and decfcvt() functions
dectoasc()	Converts a decimal type value to an ASCII string	The dectoasc() function
dectodbl()	Converts a decimal type value to a C double type value	The dectodbl() function
dectoint()	Converts a decimal type value to a C int type value	The dectoint() function
dectolong()	Converts a decimal type value to a C 4-byte integer type value	The dectolong() function