studio C++-include unistd.h: why not cunistd?
unistd.h download (4)
unistd.h is not part of standard C. Standard C++ lib doesn't include it with the other c headers.
It's said that when including C header files in C++, the ".h" suffix should be removed and then add "c" at the beginning. For example,
#include <cstdio> instead of
#include <stdio.h>. But when I use
sleep() in my code,
#include <cunistd> does not work, but
#include <unistd.h> works. Why not
Your algorithm is correct for most (all?) standard C headers, but
unistd.h is not part of standard C so standard C++ in turn doesn't include it with the other
<unistd.h> , stands for unix standard header ,the name says it all.
unistd.h never was part of the C language. It is part of the Operating System.