Comments on: 2.6 — Boolean Values http://www.learncpp.com/cpp-tutorial/26-boolean-values/ Thu, 24 Jul 2008 16:22:39 +0000 http://wordpress.org/?v=2.5.1 By: Learn C++ - » 2.7 — Chars http://www.learncpp.com/cpp-tutorial/26-boolean-values/#comment-12600 Learn C++ - » 2.7 — Chars Wed, 23 Apr 2008 01:46:08 +0000 http://www.learncpp.com/?p=42#comment-12600 [...] 2007 Prev/Next Posts « 2.6 — Boolean Values | Home | 2.8 — Constants » Saturday, June 9th, 2007 at 7:07 [...] [...] 2007 Prev/Next Posts « 2.6 — Boolean Values | Home | 2.8 — Constants » Saturday, June 9th, 2007 at 7:07 [...]

]]> By: Alex http://www.learncpp.com/cpp-tutorial/26-boolean-values/#comment-9134 Alex Sat, 08 Mar 2008 22:13:21 +0000 http://www.learncpp.com/?p=42#comment-9134 When trying to cin boolean values, if the user enters the number 0, this will be treated as the value false. If the user enters anything else, it will be treated as the value true. There are several ways to proceed: * Tell the user to enter 0 for no and 1 for yes and then cin a bool. * Tell the user to enter 'y' or 'n' and then cin a character. Once you get to the lesson on strings, you could also do this: * Tell the user to enter "yes" or "no" and then cin a string. When trying to cin boolean values, if the user enters the number 0, this will be treated as the value false. If the user enters anything else, it will be treated as the value true.

There are several ways to proceed:
* Tell the user to enter 0 for no and 1 for yes and then cin a bool.
* Tell the user to enter ‘y’ or ‘n’ and then cin a character.

Once you get to the lesson on strings, you could also do this:
* Tell the user to enter “yes” or “no” and then cin a string.

]]> By: programmer http://www.learncpp.com/cpp-tutorial/26-boolean-values/#comment-9132 programmer Sat, 08 Mar 2008 20:49:28 +0000 http://www.learncpp.com/?p=42#comment-9132 I have problem actually I don't know how to use the boolean with ( cin ) .. like this example: if i want to ask some one about his car ? =========== bool car; <pre> << ==================== cout << " IS your car new or not ? " ; cin >> car; =================== </pre> ===== is the above good solution or not ?? ... i'm witing for your answer thank you so much I have problem actually I don’t know how to use the boolean with ( cin ) ..

like this example:

if i want to ask some one about his car ?

===========
bool car;

< <
====================
cout << " IS your car new or not ? " ;
cin >> car;
===================

=====
is the above good solution or not ??

…

i’m witing for your answer

thank you so much

]]> By: Alex http://www.learncpp.com/cpp-tutorial/26-boolean-values/#comment-9041 Alex Fri, 07 Mar 2008 06:07:59 +0000 http://www.learncpp.com/?p=42#comment-9041 IsEqual function isn't a bool, it returns a bool. Boolean values are used to represent values that can only be true or false. When we're talking about whether a value is equal, either it is (true), or it isn't (false). Consequently, it makes more sense to return a bool than an int. While technically returning an int would work (returning the value 1 if the parameters are equal, and 0 otherwise), returning a bool is more intuitive and leaves less room for errors to be made. IsEqual function isn’t a bool, it returns a bool. Boolean values are used to represent values that can only be true or false. When we’re talking about whether a value is equal, either it is (true), or it isn’t (false). Consequently, it makes more sense to return a bool than an int. While technically returning an int would work (returning the value 1 if the parameters are equal, and 0 otherwise), returning a bool is more intuitive and leaves less room for errors to be made.

]]> By: some guy http://www.learncpp.com/cpp-tutorial/26-boolean-values/#comment-9038 some guy Fri, 07 Mar 2008 04:13:57 +0000 http://www.learncpp.com/?p=42#comment-9038 I'm confused as to why you make the IsEqual function a bool, wouldn't making it an int function work just as well? Or is it declared as a bool function so you have an idea of what the return values will be and what the function does? Sorry if I sound like a newbie :p I’m confused as to why you make the IsEqual function a bool, wouldn’t making it an int function work just as well? Or is it declared as a bool function so you have an idea of what the return values will be and what the function does? Sorry if I sound like a newbie :p

]]> By: Alex http://www.learncpp.com/cpp-tutorial/26-boolean-values/#comment-5722 Alex Tue, 08 Jan 2008 20:14:04 +0000 http://www.learncpp.com/?p=42#comment-5722 My personal preference is that variable names start with lower case and function (and class) names start with upper case. This makes them easier to distinguish. My personal preference is that variable names start with lower case and function (and class) names start with upper case. This makes them easier to distinguish.

]]> By: Renu http://www.learncpp.com/cpp-tutorial/26-boolean-values/#comment-5718 Renu Tue, 08 Jan 2008 18:38:24 +0000 http://www.learncpp.com/?p=42#comment-5718 Correct me if I am wrong .Shouldnt function name be "isEqual" instead of "IsEqual"? or that convention mostly applies to variable names. Correct me if I am wrong .Shouldnt function name be “isEqual” instead of “IsEqual”? or that convention mostly applies to variable names.

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