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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 dectoint() functionThe dectoint() function converts a decimal type number into a C int type number.

The dectoint() function

The dectoint() function converts a decimal type number into a C int type number.

Syntax

mint dectoint(dec_val, int_val)
   dec_t *dec_val;
   mint *int_val;

dec_val: A pointer to the decimal structure that contains the value to convert to an mint type value.
int_val: A pointer to an mint variable to contain the result of the conversion.

Usage

The dectoint() library function converts a decimal value to a C integer. The size of a C integer depends on the hardware and operating system of the computer you are using; therefore, the dectoint() function equates an integer value with the SQL SMALLINT data type. The valid range of a SMALLINT is between 32767 and -32767. To convert larger decimal values to larger integers, use the dectolong() library function.

Return values

0: The conversion was successful.
<0: The conversion failed.
-1200: The magnitude of the decimal type number is greater than 32767.