473,856 Members | 1,691 Online
Bytes | Software Development & Data Engineering Community
+ Post

Home Posts Topics Members FAQ

Printing a integer variable using putchar()

15 New Member
Sir please consider the following question and code.
1) printing a integer variable 'a' having value less than 1000.
putchar( (a/100) + ' 0 ' );
putchar( (a/10) + ' 0 ' );
putchar(a + ' 0 ' );
Could you please explain the above.
Thank you.
Jan 30 '07 #1
1 10853
1,646 Top Contributor
Sir please consider the following question and code.
1) printing a integer variable 'a' having value less than 1000.
putchar( (a/100) + ' 0 ' );
putchar( (a/10) + ' 0 ' );
putchar(a + ' 0 ' );
Could you please explain the above.
Thank you.
Hi. putchar takes an integer as a parameter and prints the ascii character for that value. a/100 is an integer division and will be 1 for all numbers of 100 and above. It will be 0 for numbers below 100.
+ '0' will be an integer addition of the value of the char '0' which is 48 and the division a/100.
Therefore, if a is 100 or greater the result is 1 + 48 or 49 which is the character '1'

If, for example, a == 123 then the next part is a modulus of a % 100 which is 23
23 / 10 is 2 and 2 + '0' is 50 which is the char 2

a % 10 or 23 % 10 is 3
3 + '0' or 3 + 48 is 51 which is the character 3
Jan 30 '07 #2

Sign in to post your reply or Sign up for a free account.

Similar topics

by: NickB | last post by:
Please could someone tell me what is wrong. Ther error is: An unhandled exception of type 'System.NullReferenceException' occurred in microsoft.visualbasic.dll Additional information: Object variable or With block variable not set. I am trying to print the contents of a list box on another form. This is the sub, and the highlighted line is where it is falling over.
by: Yammy Hung | last post by:
How to print out an integer (int) in C language without using printf()? Thanks in advance!
by: silly | last post by:
/*Thanks again to thos who helped with my 'more hand written integer pow() functions (LONG POST)' query. I needed to write a function to write out integers and after looking at some stuff on the web I felt they look a bit code-heavy so... A) If you think the code attached is reasonable, consider it a donation, if not please lets have your comments!
by: Prashanth Badabagni | last post by:
Hi, Can any body tell me how to print "hello,world" with out using semicolon Thanks in advance .. Bye Prashanth Badabagni
by: ben | last post by:
i'm learning about the floating point format that's used on my computer (apple mac so powerpc) i've written a function to print out the bits in a float to see how floats are represented and i also have a software programmer's calculator called BinCalc which shows the bits of whatever number. the bits that my code and the bits that the calculator show, for the same value, don't match. for example for the number 1.0 my code says:...
by: Matt | last post by:
Ok, so the exercise is to: Write a program that prints its input one word per line. Does this mean so that when I prest ^Z(ctrl-z) to exit the program if I were to do this: Hey you It would do this:
by: Amirallia | last post by:
Hello! I have a wecontrol table in a page, this table has a number of variable rows depending of the choice of the user. But when the table has a large number of rows, the printing of the page requires 2 pages . The first page is ok, but in the second page of the printing I have no ligne of the row and no ligne of the column printing on the page!
by: Bill | last post by:
Hi I am trying to get my listbox items to print if they stream past the one page mark. my code is working for one page of information (if the e.hasmorepages) is not there. But I am having trouble getting it to print on multiple pages. The second page will not print at all. Thanks in advance
by: hamil | last post by:
I am trying to print a graphic file (tif) and also use the PrintPreview control, the PageSetup control, and the Print dialog control. The code attached is a concatination of two examples taken out of a Microsoft book, "Visual Basic,Net Step by Step" in Chapter 18. All but the bottom two subroutines will open a text file, and then allow me to use the above controls, example 1. The bottom two subroutines will print a graphic file, example...
by: marktang | last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look ! Part I. Meaning of...
by: Hystou | last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it. First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
by: Oralloy | last post by:
Hello folks, I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>". The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed. This is as boiled down as I can make it. Here is my compilation command: g++-12 -std=c++20 -Wnarrowing bit_field.cpp Here is the code in...
by: jinu1996 | last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth. The Art of Business Website Design Your website is...
by: Hystou | last post by:
Overview: Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
by: isladogs | last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM). In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules. He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms. Adolph will...
by: conductexam | last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one. At the time of converting from word file to html my equations which are in the word document file was convert into image. Globals.ThisAddIn.Application.ActiveDocument.Select();...
by: TSSRALBI | last post by:
Hello I'm a network technician in training and I need your help. I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs. The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols. I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
by: bsmnconsultancy | last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.