# Neg64

Computes the two's complement of a 64-bit integer.

### Synopsis

`void Neg64( int64 *dest, int64 *src )`

### Description

This function computes the two's complement of a 64-bit integer. The two's complement of the location pointed to by src is deposited in the location pointed to by dest.

### Arguments

dest
  A pointer to the location to store the 64-bit integer result.

src
  A pointer to the location of the 64-bit integer to be acted upon.

### Implementation

Folio call implemented in operamath V20.

### Associated Files

operamath.h, operamath.lib

### See Also

``NegF16`(), NegF14(), Neg32(), NegF30(), NegF32()`