Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Suppose you compile and run the following micro-benchmark program in an attempt to see how quickly floating-point multiplications are computed.

main() {

       float f = 1.0;

       for (int i=0; i<1000000; ++i) f = f * f;

}
That code ran very fast, so you change the loop termination condition from i<1000000 to i<1000000000 to make it take longer to run, and recompile the program. Oddly, the new version takes exactly the same amount of processor time to execute. What probably happened?

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Step 1

C++ language:-

Bjarne Stroustrup developed the general-purpose, free-form programming language C++ in 1979 at Bell Labs in Murray Hill, New Jersey, as an improvement to the C language. It is frequently referred to as C with classes because it is a C extension. It was specially created with a focus on huge systems and resource-constrained software. Since its start, C++ has grown a lot.

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