Get / Set the current position of the stream.

Get / Set the current position of the stream. More...

Collaboration diagram for Get / Set the current position of the stream.:

Macros
#define	MEM_SEEK_SET   (0)
	A constant to specify that the offset is relative to the start of the stream.
#define	MEM_SEEK_CUR   (1)
	A constant to specify that the offset is relative to the current position indicator.
#define	MEM_SEEK_END   (2)
	A constant to specify that the offset is relative to the end of the stream.

Typedefs
typedef struct MemPos	mempos_t
	Stream position indicator.

Functions
void	mfseek (MemFile *mf, long offset, int whence)
	Set the stream position indicator for the stream pointed by mf.
void	mfgetpos (MemFile *mf, mempos_t *pos)
	Get the stream position indicator of the stream pointed by mf.
void	mfsetpos (MemFile *mf, const mempos_t *pos)
	Set the stream position indicator of the stream pointed by mf.
void	mfsetpos2 (MemFile *mf, const mempos_t *base, long offset)
	Set the stream position indicator of the stream pointed by mf.

Detailed Description

Get / Set the current position of the stream.

Macro Definition Documentation

MEM_SEEK_SET

#define MEM_SEEK_SET   (0)

A constant to specify that the offset is relative to the start of the stream.

See also

mfseek()

Definition at line 59 of file memfile.h.

MEM_SEEK_CUR

#define MEM_SEEK_CUR   (1)

A constant to specify that the offset is relative to the current position indicator.

See also

mfseek()

Definition at line 66 of file memfile.h.

MEM_SEEK_END

#define MEM_SEEK_END   (2)

A constant to specify that the offset is relative to the end of the stream.

See also

mfseek()

Definition at line 73 of file memfile.h.

Typedef Documentation

mempos_t

typedef struct MemPos mempos_t

Stream position indicator.

Note

Corresponds to fpos_t type of the standard C library I/O stream.

Definition at line 80 of file memfile.h.

Function Documentation

mfseek()

void mfseek	(	MemFile *	mf,
		long	offset,
		int	whence
	)

Set the stream position indicator for the stream pointed by mf.

Parameters

mf	Pointer to opened stream pointer.
offset	Offset in bytes from the position specified by whence.
whence	Specify the base position of offset. MEM_SEEK_SET specifies that the offset is relative to the start of the stream, MEM_SEEK_CUR specifies that the offset is relative to the current position indicator. MEM_SEEK_END specifies that the offset is relative to the end of the stream.

mfgetpos()

void mfgetpos	(	MemFile *	mf,
		mempos_t *	pos
	)

Get the stream position indicator of the stream pointed by mf.

Parameters

mf	Pointer to opened stream pointer.
pos	Pointer to the buffer where the stream position indicator will be stored.

mfsetpos()

void mfsetpos	(	MemFile *	mf,
		const mempos_t *	pos
	)

Set the stream position indicator of the stream pointed by mf.

Parameters

mf	Pointer to opened stream pointer.
pos	Pointer to the stream position indicator retrieved by mfgetpos().

mfsetpos2()

void mfsetpos2	(	MemFile *	mf,
		const mempos_t *	base,
		long	offset
	)

Set the stream position indicator of the stream pointed by mf.

Parameters

mf	Pointer to opened stream pointer.
base	Pointer to the stream position indicator retrieved by mfgetpos().
offset	Offset from the base.