18,491 Topics
This program use a while loop to delete trailing spaces and tabs from a string. It is meant to be more of an example of the application of the while loop.
Commonly strings consist of ASCII characters, some are printable, some are in the backgrounds like the bell, carriage return, linefeed, tab and so forth. This code displays a table of ASCII characters and the corresponding decimal value. As always, you are encouraged to learn here.
Some issues, such as leading whitespace and trailing characters that cannot be part of a number, were not handled in [url=http://www.daniweb.com/code/snippet357.html]Read a Floating-Point Value from the User, Part 1[/url]. Here such issues receive lip service. [I]See also [url=http://www.daniweb.com/code/snippet597.html]Read a Floating-Point Value from the User, Part 3[/url][/I].
Obtaining user input can be done in many surprisingly different ways. This code is somewhere in the middle: safer than [inlinecode]scanf("%lf", &n)[/inlinecode], but not bulletproof. It is meant to be a simple but relatively safe demonstration. Note also that there would be slight differences for using [inlinecode]float[/inlinecode] instead of [inlinecode]double[/inlinecode]. …
This snippet asks the user to fill in a structure and saves each record to the file. It uses append mode to add each new record to the end of the file. After all input is taken, it prints out the contents of the file. [i]Disclaimer: [font=courier new]fread[/font] and [font=courier …
Some issues, such as leading whitespace and trailing characters that cannot be part of a number, were not handled in [url=http://www.daniweb.com/code/showsnippet.php?codeid=266]Read an Integer from the User, Part 1[/url]. Here such issues receive lip service.
A while ago I created a code snippet in C for the same question. Solving this question with Python is a lot simpler, and on top of that Python takes care of impossible dates with the appropriate error message.
My first experience with pointers. Learned how to spell a string foreward and backward using pointers. I hope you can learn too!
This snippet shows one way to count the number of lines in a file. It will count the last line of a file even if the last line does not end in a newline. Usage: [code]C:\>linecnt linecnt.c lines = 32[/code]
This program was created by Gavindu Nuwan Dileepa and using this program you can add data to the stack , delete data and also you can view data from it... for more information contact [email][email protected][/email].. thanks
How might I write an implementation in C of the standard library function [inlinecode]strcmp[/inlinecode]? Here's how I might. [i]See also [url=http://69.93.117.133/code/snippet440.html] Strings: Comparing, Case-Insensitive[/url].[/i]
How might I write an implementation in C of the standard library function [inlinecode]strcpy[/inlinecode]? Here's how I might.
How might I write an implementation in C of the standard library function [inlinecode]strstr[/inlinecode]? Here's how I might. [url=http://www.daniweb.com/code/snippet313.html]What if I need it to be case-[b]in[/b]sensitive[/url]?
How might I write an implementation in C a case-insensitive version of the standard library function [inlinecode]strstr[/inlinecode]? Here's how I might. [url=http://www.daniweb.com/code/showsnippet.php?codeid=314]But I need it to be case-sensitive[/url]?
How might I write an implementation in C of the standard library function [inlinecode]strstr[/inlinecode]? Here's how I might.
This is a program I created a couple of weeks ago for class using DevC++ compiler. THis program allows the user 20 tries to guess a number between 1 and 100. It keeps track of wins and losses and offfers the option to continue or quit, displaying game stats.
This Program gives the details (name, kernel, machine type, domain, groups, sizeof data types, etc) of the host it is running on.
This Program gives the UserDetails of the logged in User. a) The RealName b) Login Name ( Why do we need this?) c) Home Directory d) Default Login Shell Additional Purpose of this code would be to invoke/ learn at man getpwuid and about struct passswd
It's a simple program .Just enter any date in dd/mm/yyyy format.If you enter wrong you will get the message .
Obtaining user input can be done in many surprisingly different ways. This code is somewhere in the middle: safer than [inlinecode]gets(text)[/inlinecode] or [inlinecode]scanf("%s", text)[/inlinecode], but not bulletproof. It is meant to be a simple but relatively safe demonstration. The function [inlinecode]mygetline[/inlinecode] reads user input from the [inlinecode]stdin[/inlinecode] into a string …
Hey People! This program gives you all Pythagorean triplets in a given range.( Eg. ( 3,4,5) - 3^2+4^2 = 5^2 ). I've used a pointer to allocate memory to hold the squares of all numbers in the range. The program uses a function to search for element in the array.
This program prints the prime factors of a number. Eg. 56=2x2x2x7 .I've heard its really important and stuff.I believe it is really efficient and simple. Uses two functions : one to check if a number is prime and other to return the next prime number.
This is a program to calculate the n-th root of any number. This program uses the NEWTON_RAPTION_ITERATION method for calculation. The general formula to find the n-th root of any number is : *-------------------------------* * (((n-1)/n)*x0) + (1/n)*(N/d) * *-------------------------------* where n =1,2,3............ (n-th root). x0 is First approximate root. …
In this program i had just extracted the modulo of the number given,and keep on adding it in linklist. later on,i reversed the link list and displayed the result. By:-- Anurag Pareek
VIRTUAL PIANO It's a very simple sound program , Input device is mouse. Sound function is used to produce output.Working is very simple based on seven natural freqencies.Move mouse over keys for sounds. Change range and note the difference.
This is a simple balloon shooting game made in C language. In this game, there are number of balloons, a bow and arrows for shooting the balloons. The balloons rise from the lower portion of the screen. The bow is put on left side which can move up and down. …
Obtaining user input can be done in many surprisingly different ways. This code is somewhere in the middle: safer than [inlinecode]scanf("%d", &n)[/inlinecode], but not bulletproof. It is meant to be a simple but relatively safe demonstration. The function [inlinecode]mygeti[/inlinecode] reads user input from the stdin into a string using [inlinecode]fgets[/inlinecode]. …
This snippet shows how to use the functions [inlinecode]time[/inlinecode], [inlinecode]localtime[/inlinecode], and [inlinecode]strftimetime[/inlinecode] to pick off only the time parts for display.
Some issues with date/time calculations. [Perhaps I ought to edit this one day and better describe it.]
To check for integer overflow, you can't simply check the [i]outcome[/i] of an operation, you need to check [i]before[/i] the operation. So how do you do that? This example checks for overflow with multiplication.
This is yet another example of reversing a string. This version modifies the original, reversing the string in place. [I]See also [url=http://www.daniweb.com/code/snippet522.html]Strings: Reversal, Part 2[/url][/I].
This problem is a typical homework question. The code presented here may contain some elements that may be a little "ahead of the game" in coursework, but it presents some of the basic elements that might be used in such an exercise.
This is a bit more tough than it sounds. well some one gave me this problem and I found this tricky not until I used recursion.
Many of the code samples on the internet are written in Turbo C. The clrscr() function litters these samples, and even to this day people want to wipe your screen. You can use system("CLS"), but that uses a DOS command. DOS commands are with us only at the whim of …
This program uses WinApi function SetPixel() to plot math functions y = sin(x) and y = cos(x) and y = sin(x)*cos(x) along a y-axis centered on the console screen. Make sure that gdi32.lib is included in the libraries to be linked.
A fairly complete implementation to provide another perspective on a seemingly simple program.
A very rudimentary more, press enter to view next screenful of text, like with print command in ed text editor.
Similar to cat in unix textutils. You can actually edit files with these. Remember that ctrl-z sends end-of-file in windows, and ctrl-d in linux.
Text fragment extractor (usage: fragment /pattern/[n] [/pattern/[n]] file), similar to the print command in ed and vi, with pattern range. If the second pattern is omitted, prints to the end of file. Use quotation marks when there are spaces in the argument. Finds the first pattern, then the second pattern, …
Unlike a balanced skip list, a probabilistic skip list uses random numbers to determine the height of each node rather than deterministic logic. The only real advantage of using a linked structure instead of an array based structure is in code maintainability.
Array based skip lists are a pain to work with. They are error prone and difficult to follow. Worse, they are difficult to extend so that the data structure is deterministic rather than probabilistic (a desirable property). The following implementation uses a linked structure instead of arrays for the levels.
A program that will test the Nonrecursive Factorial procedure using a value passed in by the program user and will also do a time comparision of the Nonrecursive and Recursive Factorial functions.
The next few posts will be what's required to get a window to display on the monitor. The code between Main & Pump will probably change as time goes on, but for now this is all that is required. I choose this method or placement because only 28 bytes of …
An example how to line up your decimal points in a column like output of floating point numbers. Both C and C++ versions are shown. Thanks are given to Bud Tugly, my 77 year old senior student.
In [url=http://www.daniweb.com/code/snippet149.html]Part 2[/url], you may have noticed that the bits representing the [i]value[/i] of an [font=courier new]unsigned int[/font] did not appear to match the bits representing the [i]object[/i]. This is because of the [i][url=http://en.wikipedia.org/wiki/Endianness]endianness[/url][/i] of my implementation. When it comes to displaying the bits of objects that take more space …
In [url=http://www.daniweb.com/code/snippet148.html]Part 1[/url], I chose [font=courier new]unsigned int[/font] as the type to use for displaying the bits of a value. The same general procedure can be done with other types as well. The biggest issue really is the expression which generates the most significant bit, for which there are a …
It is often instructive to display the bits of a value. (This is similar to 'converting' an integer to binary.) The way I have done this in this snippet is to start at the most significant bit and work your way through all the rest of the bits. (Continued in …
This is a very common task for a beginner programmer. Unfortunately many beginners do not seem to understand the question. First, know that binary, decimal, octal, hexadecimal, and others are simply [i]representations[/i] of values. The value of 123 (decimal) still has the same [i]value[/i] if it represented in hexadecimal (7B), …
Let's expand the decimal to binary converter to include, amongst others, octal and hexadecimal conversions. Also shows how to exert some input control. Simple stuff!
Get simple information like serial number, bytes/sector, sectors/cluster, free and total disk space of your hard drive using Windows API calls.
The End.