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"using namespace std;"

mhho
mhho asked
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Last Modified: 2013-11-17
Do you know if it is a standard practice to implement "using std::cout;" and
other shortened "using" statements to reduce overhead in a program? I'm
wondering what the benefit of using one of your examples would be over
"using namespace std;" . Is there a savings in memory or something that is
significant enough to cause a programmer to not use the entire namespace
list?
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when you do:

using namespace std

you are including all the std functions whereas by doing using std::cout you are only including a few functions

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