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Extending Informix®Beyond standard relational database objects, HCL Informix® can be extended to handle specialized data types, access methods, routines, and other objects. Informix® includes many built-in extensions that are fully integrated in the database server. Informix® 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 Informix®.
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 Informix® databases.
DataBlade® API Programmer's GuideThe Informix® DataBlade® API Programmer's Guide describes information about the DataBlade® API, the C-language application programming interface (API) provided with HCL Informix®.
Data manipulation
Numeric data typesThis section describes these numeric data types and the functions that the DataBlade® API supports to process numeric data.
Integer dataInteger data is a value with no digits to the right of the decimal point. The DataBlade® API provides support for integer values in both their text and binary representations.
Integer binary representations
Eight-byte integers
Perform operations on eight-byte values

Perform operations on eight-byte values

Use the following Informix® ESQL/C library functions to perform arithmetic operations on INT8 (mi_int8) type values.


Function name	Description
ifx_int8add()	Adds two mi_int8 numbers
ifx_int8cmp()	Compares two mi_int8 numbers
ifx_int8copy()	Copies an mi_int8 number
ifx_int8div()	Divides two mi_int8 numbers
ifx_int8mul()	Multiplies two mi_int8 numbers
ifx_int8sub()	Subtracts two mi_int8 numbers

Any other operations, modifications, or analyses can produce unpredictable results.

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