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I've seen the second question of this answered, but I've yet to see 3a and 3b be answered. The code is done in c. Not c++

I've seen the second question of this answered, but I've yet to see 3a and 3b be answered. The code is done in c. Not c++

Database System Concepts
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
Section: Chapter Questions
Problem 1PE
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I've seen the second question of this answered, but I've yet to see 3a and 3b be answered. The code is done in c. Not c++.

3a. Floating point struct Define a struct Single that describes the bit layout for a single precision floating point number. You should be able to compile this definition (using just the gcc -c step), but there is no code to run yet. You will need to use bit fields in the struct. Notice that you need to consider little endian vs. big endian. Your submission should answer the following questions about this program: • Why does endian matter here and not for part 2? 3b. Printing floating point parts Define a method void printSingle(float f) that will print the parts of the floating point number as distinct values. A typical output should look like: For value 3.5, sign=0 exp =128, fraction=11000000000000000000000 or For value 3.5, sign=0 exp =1, fraction=11000000000000000000000 (depending on whether you adjust your exponent with the bias) To place the float into the struct, use a pointer cast or a union. For example, using a pointer cast to interpret the bits of a floating point number as an integer, you could say int i; *(float *)&i = f; To print a floating point number in printf, you typically use %f. Your submission should answer the following questions about this program: • Describe how pointer casting works to get the value into a different format. • Describe how you could break apart a floating point number into parts using bitwise operators? Would that care about endian?
Transcribed Image Text:3a. Floating point struct Define a struct Single that describes the bit layout for a single precision floating point number. You should be able to compile this definition (using just the gcc -c step), but there is no code to run yet. You will need to use bit fields in the struct. Notice that you need to consider little endian vs. big endian. Your submission should answer the following questions about this program: • Why does endian matter here and not for part 2? 3b. Printing floating point parts Define a method void printSingle(float f) that will print the parts of the floating point number as distinct values. A typical output should look like: For value 3.5, sign=0 exp =128, fraction=11000000000000000000000 or For value 3.5, sign=0 exp =1, fraction=11000000000000000000000 (depending on whether you adjust your exponent with the bias) To place the float into the struct, use a pointer cast or a union. For example, using a pointer cast to interpret the bits of a floating point number as an integer, you could say int i; *(float *)&i = f; To print a floating point number in printf, you typically use %f. Your submission should answer the following questions about this program: • Describe how pointer casting works to get the value into a different format. • Describe how you could break apart a floating point number into parts using bitwise operators? Would that care about endian?
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