An integer is passed as a string to a function, the function returns whether the integer is a valid integer or not that i.e., it contains only digits in it. The function returns true or false. C++

C++ Programming: From Problem Analysis to Program Design
8th Edition
ISBN:9781337102087
Author:D. S. Malik
Publisher:D. S. Malik
Chapter6: User-defined Functions
Section: Chapter Questions
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An integer is passed as a string to a function, the function returns whether the integer is a valid integer or not that i.e., it contains only digits in it. The function returns true or false.

C++

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