The table below provides summary descriptions of the overloaded procedures included in the Variants Library. For full descriptions, check the f90VB Reference Manual.

Procedure Name	Description
CurrencyCmp	Compares two currency type values.
DecimalCmp	Compares two decimal type values.
VariantAbs, DecimalAbs and CurrencyAbs	Compute the absolute value of a variant.
VariantAdd, DecimalAdd and CurrencyAdd	Return the sum of two variants.
VariantAnd	Performs a bitwise And operation between two variants.
VariantBoolFrom<VarType>	Set of low-level subroutines to convert variant data types to Boolean data type.
VariantBStrFrom<VarType>	Set of low-level subroutines to convert variant data types to an unsigned 4-byte integer.
VariantToLogical, VariantToInteger, VariantToReal, VariantToDouble, VariantToBString, VariantToCy and VariantToDEC	This is a group of functions that return the content of a variant coerced to the specified Fortran type.
VariantCat	Returns the concatenation of two variants.
VariantChangeType	Converts a variant from one type to another. The source and destination can be the same variant, in which case the subroutine performs a conversion in-place.
VariantClear	Clears the contents of a variant and sets the variant to VT_EMPTY.
VariantCmp	Compares two variants.
VariantCopy	Frees the destination variant and makes a copy of the source variant.
VariantCopyInd	Frees the destination variant and makes a copy of the source variant, performing the necessary indirection if the source contains the VT_BYREF flag.
VariantCreate	Creates, initializes and returns a Variant of the requested type.
VariantCyFrom<VarType>	Set of low-level subroutines to convert variant data types to a currency type.
VariantDateFrom<VarType>	Set of low-level subroutines to convert variant data types to a date type.
VariantDecFrom<VarType>	Set of low-level subroutines to convert variant data types to a decimal type.
VariantDiv and DecimalDiv	Return the result from dividing two variants.
VariantEqv	Performs a bitwise equivalence on two variants.
VariantFix, DecimalFix and CurrencyFix	Return the integer portion of a variant.
VariantIDiv	Returns the result from dividing two variants after they have been converted to integer types.
VariantImp	Performs a bitwise implication on two variants.
VariantInit	Initializes a variant to VT_EMPTY
VariantInt, DecimalInt and CurrencyInt	Returns the integer portion of a variant.
VariantI1From<VarType>	Set of low-level subroutines to convert variant data types to a signed 1-byte integer.
VariantI2From<VarType>	Set of low-level subroutines to convert variant data types to a signed 2-byte integer.
VariantI4From<VarType>	Set of low-level subroutines to convert variant data types to a signed 4-byte integer.
VariantMod	Returns the reminder of dividing two variants.
VariantMul, DecimalMul and CurrencyMul	Return the result from multiplying two variants.
VariantNeg, DecimalNeg and CurrencyNeg	Return the logical negation on a variant.
VariantNot	Returns the bitwise negation operation on a variant.
VariantOr	Performs a bitwise Or operation between two variants.
VariantPow	Returns the result of elevating one variant to the power of the other.
VariantRound, DecimalRound and CurrencyRound	Return the passed variant rounded to the indicated number of decimal places.
VariantR4From<VarType>	Set of low-level subroutines to convert variant data types to a signed 4-byte real (single precision).
VariantR8From<VarType>	Set of low-level subroutines to convert variant data types to a signed 8-byte real (double precision).
VariantSub, DecimalSub and CurrencySub	Return the result from subtracting two variants.
VariantUI1From<VarType>	Set of low-level subroutines to convert variant data types to an unsigned 1-byte integer.
VariantUI2From<VarType>	Set of low-level subroutines to convert variant data types to an unsigned 2-byte integer.
VariantUI4From<VarType>	Set of low-level subroutines to convert variant data types to an unsigned 4-byte integer.
VariantXor	Performs a logical exclusion between two variants.