<![CDATA[
/* convert3.c
This program converts an integer greater than 100 but less than 1000
given by the user from the English unit of measure, inches, to the
Metric System units; cm, m, and km. If the input is not between
100 and 1000, the program exits.
This program may not reflect all the requirements of the C Coding
Standards used in this class.
*/
#include <stdio.h>
int main() {
int inches, meters; /* Notice that meters is an int this time,
not a float. */
printf("This program will convert inches into the Metric System.\n");
printf("Please enter an integer between 100 and 1000: ");
scanf("%d", &inches);
if(inches < 100) {
printf("Integer must be greater than 100. Good Bye!\n");
return(1);
} else if(inches > 1000) {
printf("Integer must be less than 1000. Good Bye!\n");
return(1);
}
/* This is explicit type casting. The multipication below produces a float
for a result but it is being assigned to an int, so we type cast it so
nothing is lost in the conversion. */
meters = (int)(inches * .0254);
printf("Conversion of %d inches into metric yields:\n", inches);
printf("\t\t%d centimeters\n", meters * 100);
printf("\t\t%d meters\n", meters);
printf("\t\t%d kilometers\n", meters / 1000);
return(0);
}
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<![CDATA[
[foxtrot]> cc convert3.c
[foxtrot]> a.out
This program will convert inches into the Metric System.
Please enter an integer between 100 and 1000: 2
Integer must be greater than 100. Good Bye!
[foxtrot]> a.out
This program will convert inches into the Metric System.
Please enter an integer between 100 and 1000: 10002
Integer must be less than 1000. Good Bye!
[foxtrot]> a.out
This program will convert inches into the Metric System.
Please enter an integer between 100 and 1000: 150
Conversion of 150 inches into metric yields:
300 centimeters
3 meters
0 kilometers
[foxtrot]>
]]>