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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 rstoi() functionThe rstoi() function converts a null-terminated string into a short integer value.

The rstoi() function

The rstoi() function converts a null-terminated string into a short integer value.

Syntax

mint rstoi(string, ival)
   char *string;
   mint *ival;

string: A pointer to the null-terminated string to convert.
ival: A pointer to a mint variable to contain the converted value.

Usage

The legal range of values is -32767 - 32767. The value -32768 is not valid because this value is a reserved value that indicates null.

If string corresponds to a null integer, ival points to the representation for a SMALLINT null. To convert a string that corresponds to a long integer, use rstoi(). Failure to do so can result in corrupt data representation.

Return values

=0: The conversion was successful.
!=0: The conversion failed.