There is a problem in compiling in C++ program
error: iostream.h no such file or directory
I used make hello where hello.cpp is my filename.
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3Try #include <iostream>Abhishek Bansal– Abhishek Bansal2013-11-19 12:19:35 +00:00Commented Nov 19, 2013 at 12:19
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Possible duplicate of Why can't g++ find iostream.h?phuclv– phuclv2018-08-12 11:25:30 +00:00Commented Aug 12, 2018 at 11:25
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3 Answers
Use
#include<iostream>
The name iostream.h is deprecated.
3 Comments
Mike Seymour
Not just deprecated; it hasn't been a standard header since at least 1998.
jcm
@MikeSeymour Yes, you're right. This is quite well explained in the link I provided in my answer.
Claudio
According to "The C++ Standard Library" by Josuttis, it's deprecated. From page 41: "there is no specification in the standard. Hence, they are not supported. In practice, most vendors will probably provide them to enable backward compatibility"
Use #include <iostream> instead of #include <iostream.h>
If you want to know why iostream.h was outdated, I suggest reading: Why is #include outdated
Comments
#include<iostream>
using namespace std;
that is the first code I ve write
4 Comments
Claudio
You should never use using namespace std in headers.
Patato
Maybe this is the first Hello World of his programing career, do you want him konw those complex rules
Moo-Juice
@Patato, ideally - yes.
Mike Seymour
@Patato: Using properly qualified names is no more "complex" than learning an incantation to dump them into the wrong namespace, and is a better habit to get into.