Returns the value converted to Little Endian format.

This macro converts a 64-bit number from the CPU's native byte ordering into Little Endian format.

If the host processor operates in Big Endian mode, the macro invokes the stSwap64 function to reverse the byte order of the specified value. If the processor operates in Little Endian mode, the value remains unmodified.

This macro is excluded from compilation if the byte ordering module is disabled by setting the ST_USE_ENDIANS configuration constant to 0, or if 64-bit integer support is disabled by setting AR_USE_64_BIT to 0.