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C Runtime Library.

Complementary runtime support. More...

Modules
Standard I/O
	Standard stream interface to Nut/OS devices.
Low Level I/O
	Low level input and output operations.
Miscellaneous Functions
	Complementary runtime support.
Data Structures
struct	__iobuf
Defines
#define	BUFSIZ   128
	Default maximum size of stream buffers.
#define	FOPEN_MAX   8
	Default maximum number of open streams.
#define	FILENAME_MAX   255
	Default maximum size of filenames.

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Detailed Description

Complementary runtime support.

Normal C language runtime libraries are too large for small embedded systems and many functions require an underlying operating system. Compilers for the AVR provide a limited subset only, which do not include sufficient device support.

Nut/OS includes its own runtime library. When linked with an application, this library partly overrides the standard library which comes with your compiler.

Warning:

Using these functions requires to link nutcrt or nutcrtf before the compiler's standard libraries.

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Define Documentation

#define BUFSIZ   128

Default maximum size of stream buffers. Currently not used.

#define FILENAME_MAX   255

Default maximum size of filenames.

#define FOPEN_MAX   8

Default maximum number of open streams.

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