he user to enter a hex number as a string and display the number in decimal. If the function throws an exception, d

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
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Solve the Problem in C++

(invalid_argument )

Listing 6.18 gives the hex2Dec(const string & hexString) function that returns a decimal number from a hex string. Implement the hex2Dec function to throw a invalid_argument exception if the string is not a hex string.

Write a test program that prompts the user to enter a hex number as a string and display the number in decimal. If the function throws an exception, display "Not a hex number".

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