stdin, stdout, stderr (Windows CE 5.0)
Developing an Application > Microsoft C Run-time Library for Windows CE > Run-time Library Global Constants
The following are standard streams for input, output, and error output.
FILE *stdin;
FILE *stdout;
FILE *stderr;
#include <stdio.h>
Remarks
By default, standard input is read from the keyboard, while standard output and standard error are printed to the screen.
The following stream pointers are available to access the standard streams:
| Pointer | Stream |
|---|---|
| stdin | Standard input |
| stdout | Standard output |
| stderr | Standard error |
These pointers can be used as arguments to functions.
Some functions, such as getchar and putchar, use stdin and stdout automatically.
These pointers are constants, and cannot be assigned new values.
The freopen function can be used to redirect streams to disk files or to other devices.
The OS allows you to redirect a program's standard input and output at the command level.
See Also
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