Home
Extending HCL OneDB™Beyond standard relational database objects, HCL OneDB™ can be extended to handle specialized data types, access methods, routines, and other objects. HCL OneDB™ includes many built-in extensions that are fully integrated in the database server. HCL OneDB™ also provides DataBlade® modules, which are packages of extended database objects for a particular purpose and that are installed separately from the database server. Alternatively, you can create your own user-defined objects for HCL OneDB™.
Creating extensionsYou can create user-defined data types, routines, access methods, and other database objects to suit your needs. You can use application programming interfaces to write user-defined routines and applications that access data in HCL OneDB™ databases.
DataBlade® API Function ReferenceThe HCL OneDB™ DataBlade® API Function Reference describes the DataBlade® API functions and the subset of functions that the DataBlade® API supports.
Function descriptionsThis section gives comprehensive reference information about the functions that are valid within DataBlade® API modules. It lists the function descriptions in alphabetical order, with syntax, usage information, and return values for the functions.
The dectoasc() functionThe dectoasc() function converts a decimal type number to a C char type value.

The dectoasc() function

The dectoasc() function converts a decimal type number to a C char type value.

Syntax

mint dectoasc(dec_val, strng_val, len, right)
   dec_t *dec_val;
   char *strng_val;
   mint len;
   mint right;

dec_val: A pointer to the decimal structure that contains the value to convert to a text string.
strng_val: A pointer to the first byte of the character buffer where the dectoasc() function is to place the text string.
len: The size of strng_val, in bytes, minus 1 for the null terminator.
right: is an integer that indicates the number of decimal places to the right of the decimal point.

Usage

If right = -1, the decimal value of dec_val determines the number of decimal places.

If the decimal number does not fit into a character string of length len, dectoasc() converts the number to an exponential notation. If the number still does not fit, dectoasc() fills the string with asterisks. If the number is shorter than the string, dectoasc() left-justifies the number and pads it on the right with blanks.

Because the character string that dectoasc() returns is not null terminated, your program must add a null character to the string before you print it.

Return values

0: The conversion was successful.
-1: The conversion failed.