Objectives

Write a small program that uses both short and long options from getopt$\_$long$().$

Use sscanf$()$ or strtof$()/$strtol$()$ for converting a string representation of a value into the numeric value.

Use the rand$()$ function.

Use the strncpy$()$ function. The maximum length of the string will be $99$ characters $($not including the trailing NULL$).$ You must create either a #define to represent this value or a const variable.

The command line arguments your program must take are:

Command line option Description:

$1)-$h or $--$help Print the usage information. Your output should look like the example I show in this document.

$2)-$r or $--$rand Print the pseudo$-$random number returned from a call to rand$().$ The values printed by your program may differ from the ones I show. Don't seed your random number. This means it should print the same set of random numbers. That's just how pseudo$-$random number generators work.

$3)-$f or $--$float Take the string value that follows the option $()$ convert it into a float data type, divide it by $10,$ and print the result.

$4)-$i or $--$int Take the string value that follows the option $()$ convert it into a int data type, add $100$ to it$,$ and print the result.

$5)-$s or $--$str Take the string value passed, print it$,$ convert all the characters in it to upper case, and print the upper case version of the string. If you pass a string that includes spaces someplace in it$,$ you'll need to put quotes around the entire string. Think about the toupper$()$ function. I have a strong feeling that you are going to somehow make a copy of the string from the command line.

Example output:

Below are some sample output results when running my solution. Your output should match mine for these examples:

$1)($Username$)$ # $./$getopt$-$long $-$h

This is a help message:

$--$float$|-$f

$--$int$|-$i

$--$str$|-$s

$--$rand$|-$r

$--$help$|-$h

$2)($Username$)./$getopt$-$long $--$help

This is a help message:

$--$float$|-$f

$--$int$|-$i

$--$str$|-$s

$--$rand$|-$r

$--$help$|-$h

$3)($Username$)./$getopt$-$long $-$i $17--$int $23-$i$8--$int$=34$

int value $+100$: $117$

int value $+100$: $123$

int value $+100$: $108$

int value $+100$: $134$

$4)($Username$)./$getopt$-$long $-$f $37\mathrm{.}5-$f$38\mathrm{.}5--$float $380\mathrm{.}5--$float$=375\mathrm{.}2$

float value $/10$: $3\mathrm{.}750000$

float value $/10$: $3\mathrm{.}850000$

float value $/10$: $38\mathrm{.}050000$

float value $/10$: $37\mathrm{.}520001$

$5)($Username$)./$getopt$-$long $-$s hello $-$s$"$hello world" $--$str "hello there" $--$str$=$"hello it's me$"$

orig: $>$hello$<$upcase: $>$HELLO$<$

orig: $>$hello world$<$upcase: $>$HELLO WORLD$<$

orig: $>$hello there$<$upcase: $>$HELLO THERE$<$

orig: $>$hello it's me$<$upcase: $>$HELLO IT'S ME$<$

$6)($Username$)./$getopt$-$long $-$r $--$rand

random value $=1804289383$

random value $=846930886$