Humans are also regularly harmed by pollution. Long-term exposure to air pollution, for example, can lead to chronic respiratory disease, lung cancer and other diseases. Toxic chemicals that accumulate in top predators can make some species unsafe to eat.
#include <iostream> is the Standard C++ way to include header files, the. 'iostream' is an identifier that maps to the file iostream.h. In older C++ you had to specify the filename of the header file, hence #include. <iostream.h>. Older compilers may not recognise the modern method, newer.
I/O Streams and File I/O Basics of I/O Streams and File I/O This is like a cheat sheet for file I/O in C++. It summarizes the steps you must take to do basic I/O to and from files, with only a tiny bit of explanation. It is not a replacement for reading a thorough explanation of file streams in C++. â¢Streams: A stream is a flow of characters. â¢An input stream is a flow of characters into the program. â¢An output stream is a flow of characters out of the program. â¢cin is a predefined input stream (defined in <iostream>). â¢cout is a predefined output stream (defined in <iostream>). â¢cerr is a predefined output error stream (defined in <iostream>), to which you should send all error messages. It defaults to the terminal (just like cout.