char question

[louis_mine]

Hello, have been trying to create a program where someone introduces a letter and the program told you if the letter is the same as one or more letters from a word which is in the program, for example the word is "Going", what I want is that someone writes a character and the program compares with each one of the word, and if it is the same of any in the original string, i wikk print it, however i want it to do it without caring if they write a capital letter or not, for example if they write "I", the program prints --i-- (from going) and if they then press "g", to appear G-i--
is there a way to do this?, please if anybody knows a way to do so i will be really thankfull

[sean]

You'll want to have a look at the functions in ctype.h. One idea is to check each character with islower(), and if it is, toupper() it.

http://www.infosys.utas.edu.au/info/...b.html#ctype.h

edit: For an extra challenge, you could also do it manually. At the binary level, every char is really just an integer representing thr ASCII number of the character.

hint: (int)'A' - (int)'a' == (int)'Z' - (int)'z'

[skorman00]

so you want hangman without the hanging man? Look at this to get some ideas on how to do it: http://faq.cprogramming.com/cgi-bin/...&id=1043284392

[quzah]

Bah! What fun is hangman is there's no fear of death in the process?

Quzah.

[xErath]

Programming fun perhaps??

[quzah]

Yes, but wouldn't it be funner if you had the fear of death if you programmed incorrectly? See...

Quzah.

[Thantos]

You'll want to have a look at the functions in ctype.h. One idea is to check each character with islower(), and if it is, toupper() it.

http://www.infosys.utas.edu.au/info/...b.html#ctype.h

edit: For an extra challenge, you could also do it manually. At the binary level, every char is really just an integer representing thr ASCII number of the character.

hint: (int)'A' - (int)'a' == (int)'Z' - (int)'z'

Hey Sean not every computer uses ASCII and the values of the letters are not guaranteed to be contiguous. Also there is no need to cast character literals to int.

[sean]

not every computer uses ASCII

Good point - it will be OS specific - but if you're just using a Windows machine and the only purpose of this program is for fun or learning, it should work. THough it is a good idea to start thinking about portability even as you're learning C.

there is no need to cast character literals to int.

[lie]I just thought it would make the conecept clearer for the OP![/lie]

[truth]Darn... thanks Thantos![/truth]