Convert hex str to decimal value in delphi

Question

I\'ve got a problem to convert a string representation of an hex value in integer value with Delphi.

for example:

$FC75B6A9D025CB16 give me 8

Answer 1

The number is too big to be represented as a signed 64-bit number.

FC75B6A9D025CB16h = 18191647110290852630d

The largest possible signed 64-bit value is

2^63 - 1 = 9223372036854775807