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Comparing while and do loops
Introduction to C example from a Well House Consultants training course
More on Introduction to C [link] Source code: ltab.c Module: C101
#include <stdio.h>
#define OLDRATE 15.0 #define NEWRATE 20.0 /* All about the code ... here is the USER DOCUMENTATION ;-) ... =head1 Receipe for Pear Melba Take a peach melba. Remove Peaches. Add pears. Eat =cut OK - so we're cheating and using Perl's POD handler! But it does mean that we have - C source - User comments - User documentation ALL in the same file! */ main () { int counter; float oldnet, newnet; printf ("VAT Conversion 2day and 2morrow\n"); /* While - slightly longwinded way of doing it ... */ counter = 0; while (counter < 10) { oldnet = counter * OLDRATE; newnet = counter * NEWRATE; printf ("Net %2d was %6.2f becomes %6.2f\n", counter,oldnet,newnet); counter = counter + 1; } /* Syntactic icing - "for" loop alternative */ for (counter = 0; counter < 10; counter++) { oldnet = counter * OLDRATE; newnet = counter * NEWRATE; printf ("Net %2d was %6.2f becomes %6.2f\n", counter,oldnet,newnet); } } /* Sample Output munchkin:c grahamellis$ ./ltab VAT Conversion 2day and 2morrow Net 0 was 0.00 becomes 0.00 Net 1 was 15.00 becomes 20.00 Net 2 was 35.00 becomes 40.00 Net 3 was 52.50 becomes 60.00 Net 4 was 70.00 becomes 80.00 Net 5 was 87.50 becomes 100.00 Net 6 was 105.00 becomes 120.00 Net 7 was 122.50 becomes 140.00 Net 8 was 140.00 becomes 160.00 Net 9 was 157.50 becomes 180.00 Net 0 was 0.00 becomes 0.00 Net 1 was 15.00 becomes 20.00 Net 2 was 35.00 becomes 40.00 Net 3 was 52.50 becomes 60.00 Net 4 was 70.00 becomes 80.00 Net 5 was 87.50 becomes 100.00 Net 6 was 105.00 becomes 120.00 Net 7 was 122.50 becomes 140.00 Net 8 was 140.00 becomes 160.00 Net 9 was 157.50 becomes 180.00 munchkin:c grahamellis$ */ Learn about this subject
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