Informix DataBlade API Programmer's Manual DataBlade API Function Descriptions

The mi_type_maxlength() function obtains the maximum length of a data type from its type descriptor.

mi_integer mi_type_maxlength(type_desc)

MI_TYPE_DESC *type_desc;

type_desc

is a pointer to the type descriptor from which mi_type_maxlength() obtains the maximum length.

Valid in Client LIBMI Application?	Valid in User-Defined Routine?
Yes	Yes

The mi_type_maxlength() function obtains the maximum length of the data type from the type descriptor that type_desc references. The maximum length applies to the built-in data types VARCHAR and LVARCHAR. For extended data types, the maximum length is the value of the maxlen column of the sysxtdtypes system catalog table.

The NVARCHAR data type also has a maximum length.

If you call mi_type_maxlength() on some other data type, the function returns zero (0).

See the descriptions of the following functions: mi_type_align(), mi_type_byvalue(), mi_type_element_typedesc(), mi_type_full_name(), mi_type_length(), mi_type_owner(), mi_type_precision(), mi_type_qualifier(), mi_type_scale(), mi_type_typename(), and mi_typedesc_typeid().