C++Talk.NET C++ language newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  n00bie questions          C++Talk.NET Forum Index -> C++ language (comp.lang.c++) View previous topic :: View next topic   Author Message Se'noj Guest Posted: Wed Aug 25, 2004 10:13 am    Post subject: n00bie questions Hi everyone. This is my first post to Usenet, AND I started learning to program C++ last weekend, so please bear with me. Two questions... Firstly, whenever I compile programs, my compiler (Bloodshed Dev-CPP) tells me that iostream.h is deprecated or antiquated. What exactly does that mean, and how do I fix it? Second, some online tutorials I've seen use std:: at the start of some line, but forget to explain what it means. Could anyone help me out with that? Thanks for your help. Bryan Jones (aka Se'noj, tlhIngan Hol jatlhwI') Back to top Sharad Kala Guest Posted: Wed Aug 25, 2004 10:15 am    Post subject: Re: n00bie questions "Se'noj" <tlhingan (AT) gmail (DOT) com> wrote Quote: Hi everyone. This is my first post to Usenet, AND I started learning to program C++ last weekend, so please bear with me. Two questions... Firstly, whenever I compile programs, my compiler (Bloodshed Dev-CPP) tells me that iostream.h is deprecated or antiquated. What exactly does that mean, and how do I fix it? Second, some online tutorials I've seen use std:: at the start of some line, but forget to explain what it means. Could anyone help me out with that? You may want to check this FAQ (and others too) - http://www.parashift.com/c++-faq-lite/coding-standards.html#faq-27.4 -Sharad Back to top Ioannis Vranos Guest Posted: Wed Aug 25, 2004 11:30 am    Post subject: Re: n00bie questions Se'noj wrote: Quote: Hi everyone. This is my first post to Usenet, AND I started learning to program C++ last weekend, so please bear with me. Two questions... Firstly, whenever I compile programs, my compiler (Bloodshed Dev-CPP) tells me that iostream.h is deprecated or antiquated. What exactly does that mean, and how do I fix it? That means that you must get another C++ book. C++ is a standardised language, and iostream.h was used before the official standard. The C++ standard iostream header is <iostream> and *not* <iostream.h>. Quote: Second, some online tutorials I've seen use std:: at the start of some line, but forget to explain what it means. Could anyone help me out with that? In general, everything in the C++ standard library (except of the C-subset .h header files) is defined in namespace std. Regards, Ioannis Vranos http://www23.brinkster.com/noicys Back to top K Campbell Guest Posted: Wed Aug 25, 2004 3:04 pm    Post subject: Re: n00bie questions "Sharad Kala" <no__spam.sharadk_ind (AT) yahoo (DOT) com> wrote Quote: "Se'noj" <tlhingan (AT) gmail (DOT) com> wrote in message news:39d43bd0.0408250213.71b9b22 (AT) posting (DOT) google.com... Hi everyone. This is my first post to Usenet, AND I started learning to program C++ last weekend, so please bear with me. Two questions... Firstly, whenever I compile programs, my compiler (Bloodshed Dev-CPP) tells me that iostream.h is deprecated or antiquated. What exactly does that mean, and how do I fix it? Second, some online tutorials I've seen use std:: at the start of some line, but forget to explain what it means. Could anyone help me out with that? First, try doing #include <iostream> Second, std:: is part of something called a namespace. Namespaces are generally used in larger programs so that someone doesn't declare the same variable twice. using namespace std; means that use all the variables in the namespace std an example namespace is: namespace one { int j; string k; } int main () { one::j = 2; using namespace one; k = "Hello"; } cout is actually a variable declared under the namespace std; you can either do: std::cout<<"Hello, World"; or using namespace std; cout<<"Hello, World"; I hope I've been of some help. Back to top Ali Cehreli Guest Posted: Wed Aug 25, 2004 5:12 pm    Post subject: Re: n00bie questions On Wed, 25 Aug 2004 08:04:59 -0700, K Campbell wrote: Quote: "Sharad Kala" <no__spam.sharadk_ind (AT) yahoo (DOT) com> wrote in message news:<2p375lFg1t6eU1 (AT) uni-berlin (DOT) de>... "Se'noj" <tlhingan (AT) gmail (DOT) com> wrote in message news:39d43bd0.0408250213.71b9b22 (AT) posting (DOT) google.com... Second, some online tutorials I've seen use std:: at the start of some line, but forget to explain what it means. Could anyone help me out with that? Second, std:: is part of something called a namespace. std is the name of the standard namespace. :: is the scope resolution operator. Quote: Namespaces are generally used in larger programs so that someone doesn't declare the same variable twice. Not only the variables but the names in general. Quote: using namespace std; means that use all the variables in the namespace std It means that the compiler should look into the specified namespace when it comes accross an unqualified name. Ali Back to top Karthik Kumar Guest Posted: Sat Aug 28, 2004 6:15 am    Post subject: Re: n00bie questions Se'noj wrote: Quote: Hi everyone. This is my first post to Usenet, AND I started learning to program C++ last weekend, so please bear with me. Two questions... Firstly, whenever I compile programs, my compiler (Bloodshed Dev-CPP) tells me that iostream.h is deprecated or antiquated. What exactly does that mean, and how do I fix it? #include <iostream> should fix it. Probably you need to check the source from which you are learning C++. Either the book that you are learning from could be deprecated . "C++ Programming Language" - Stroustroup is suggested by one and all. Quote: Second, some online tutorials I've seen use std:: at the start of some line, but forget to explain what it means. Could anyone help me out with that? Check out for namespaces further in that tutorials. All the best. -- Karthik. 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