| Copyright © 2007-2010 ARM. All rights reserved. | ARM DUI 0349C |
| Non-Confidential | ID101213 |
 PDF version | |
| Home > The C Micro-library > Tailoring the microlib input/output functions |
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Microlib provides a limited stdio subsystem
that supports unbuffered stdin, stdout and stderr only.
This enables you to use printf() for displaying
diagnostic messages from your application.
To use high level I/O functions you must provide your own implementation of the following base functions so that they work with your own I/O device.
fputc()Implement this base function for all output functions.
For example, fprintf(), printf(), fwrite(),
fputs(), puts(), putc() and putchar().
fgetc()Implement
this base function for all input functions. For example, fscanf(), scanf(), fread(), read(), fgets(), gets(), getc() and getchar().
__backspace()Implement this base function if your input functions
use scanf() or fscanf().
Conversions that are not supported in microlib are %lc, %ls and %a.
See Tailoring the input/output functions for more information.
| Copyright © 2007-2010 ARM. All rights reserved. | ARM DUI 0349C |
| Non-Confidential | ID101213 |
| PDF version | |
| Home > The C Micro-library > Tailoring the microlib input/output functions |