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What is the difference between #include<iostream.h> & #include<iostream> using namespace syd; ?
C++ pre processor directives
3 Respostas
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Ya
" #include<iostream>
using namespace std; "
it is used to remove scope resolution (::) in the program. if there is no "using namespace STD" in program you have to use STD::COUT<<"HELLO" and if there is "using namespace std " in program then you have to use only COUT<<"Hello"
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Thanks bud
0
All these headers, that have no ".h" prefix, are from modern C++ standard library. But those with it are left there for compatibility with older C++ library standard and you shouldn't use them normally.