c-treeDB API API for C

ctdbIsFieldNumeric

Indicate if a field represents a numeric field type.

Declaration

CTBOOL ctdbIsFieldNumeric(CTHANDLE Handle)

Description

ctdbIsFieldNumeric() indicates if the field handle represents a field with a numeric value. The numeric field types are: CT_CHAR, CT_CHARU, CT_INT2, CT_INT2U, CT_INT4, CT_INT4U, CT_DATE, CT_TIME, CT_MONEY, CT_TIMES, CT_SFLOAT, CT_DFLOAT, CT_EFLOAT, CT_CURRENCY, CT_NUMBER, and CT_INT8.

Handle [in] a Field Handle.

Returns

ctdbIsFieldNumeric() returns YES if the field represents a numeric value and NO if the field does not represent a numeric value

Example

/* if fields hField1 and hField2 are numeric, add the values and store the result in hField1 */

if (ctdbIsFieldNumeric(hField1) && ctdbIsFieldNumeric(hField2))

{

CTNUMBER res, val1, val2;

ctdbGetFieldAsNumber(hRecord, ctdbGetFieldNbr(hField1), &val1);

ctdbGetFieldAsNumber(hRecord, ctdbGetFieldNbr(hField2), &val2);

ctdbNumberAdd(&val1, &val2, &res);

ctdbSetFieldAsNumber(hRecord, ctdbGetFieldNbr(hField1), &res);

}