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ftSingle

ftSingle = 51

Example​

function IsSinglePrecision(Field: TField): Boolean;
begin
  Result := Field.DataType = ftSingle;
end;

Usage​

ftSingle identifies a Single-precision binary floating field with substantially less precision than ftFloat.

Additional Technical Info​

ftSingle is declaration ordinal 51 of TFieldType. It identifies IEEE-style Single/binary32 values, typically about 7 significant decimal digits—far less than ftFloat.

Expect rounding when values arrive through Double/decimal/text providers. Use tolerance-aware comparisons and never use Single for money or exact identifiers. Provider support, NaN/Infinity and Null remain separate concerns.

The example only inspects metadata and was source-reviewed; no floating calculation/dataset/database/runtime/image test ran.

Created 2026-07-15