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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
The int8.h header file
Internal INT8 formatThe INT8 data type stores eight-byte integers in a proprietary internal format for HCL Informix®: the ifx_int8_t structure. This structure allows the database to store eight-byte integers in a computer-independent format.

Internal INT8 format

The INT8 data type stores eight-byte integers in a proprietary internal format for HCL Informix®: the ifx_int8_t structure. This structure allows the database to store eight-byte integers in a computer-independent format.

Tip: The internal format of the INT8 data type is often referred to as its binary representation.

The mi_int8 data type uses the ifx_int8_t structure to hold the binary representation of an INT8 value.

Restriction: The ifx_int8_t structure is an opaque C data structure to DataBlade® API modules. Do not access its internal fields directly. The internal structure of ifx_int8_t might change in future releases.

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