---
name: "Vector_BLF_AbstractFile"
section: "3"
platform: "linux"
package: "vector-blf"
version: "2.4.2-2"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/Vector_BLF_AbstractFile"
---

# Vector\_BLF\_AbstractFile(3)

## NAME

Vector::BLF::AbstractFile

## SYNOPSIS

\#include \<AbstractFile.h\>

Inherited by **Vector::BLF::CompressedFile**, and **Vector::BLF::UncompressedFile**.

### Public Member Functions

**AbstractFile** (const AbstractFile &)=default\
 AbstractFile & **operator=** (const AbstractFile &)=default\
 **AbstractFile** (AbstractFile &&)=default\
 AbstractFile & **operator=** (AbstractFile &&)=default\
 virtual std::streamsize **gcount** () const =0\
 virtual void **read** (char \*s, std::streamsize n)=0\
 virtual std::streampos **tellg** ()=0\
 virtual void **seekg** (std::streamoff off, const std::ios\_base::seekdir way=std::ios\_base::cur)=0\
 virtual void **write** (const char \*s, std::streamsize n)=0\
 virtual std::streampos **tellp** ()=0\
 virtual bool **good** () const =0\
 virtual bool **eof** () const =0\
 virtual void **skipp** (std::streamsize s) final\

## Detailed Description

Generic interface to access **CompressedFile** and **UncompressedFile** in the same way.

## Member Function Documentation

### virtual bool Vector::BLF::AbstractFile::eof () const \[pure virtual\]

Check whether eofbit is set.

**Returns**

true if eofbit is set

Implemented in **Vector::BLF::CompressedFile**, and **Vector::BLF::UncompressedFile**.

### virtual std::streamsize Vector::BLF::AbstractFile::gcount () const \[pure virtual\]

Get characters returned by last read operation.

**Returns**

Number of characters

Implemented in **Vector::BLF::CompressedFile**, and **Vector::BLF::UncompressedFile**.

### virtual bool Vector::BLF::AbstractFile::good () const \[pure virtual\]

Check whether state of stream is good.

**Returns**

true if no error flags are set

Implemented in **Vector::BLF::CompressedFile**, and **Vector::BLF::UncompressedFile**.

### virtual void Vector::BLF::AbstractFile::read (char \* s, std::streamsize n) \[pure virtual\]

Read block of data.

This operation blocks until the data is available.

**Parameters**

*s* Pointer to data \
 *n* Requested size of data

Implemented in **Vector::BLF::CompressedFile**, and **Vector::BLF::UncompressedFile**.

### virtual void Vector::BLF::AbstractFile::seekg (std::streamoff off, const std::ios\_base::seekdir way = std::ios\_base::cur) \[pure virtual\]

Set position in input sequence.

**Parameters**

*off* Offset \
 *way* Direction

Implemented in **Vector::BLF::CompressedFile**, and **Vector::BLF::UncompressedFile**.

### void Vector::BLF::AbstractFile::skipp (std::streamsize s) \[final\], \[virtual\]

Write padding null bytes.

**Parameters**

*s* Number of padding bytes.

### virtual std::streampos Vector::BLF::AbstractFile::tellg () \[pure virtual\]

Get position in input sequence.

**Returns**

Read position

Implemented in **Vector::BLF::CompressedFile**, and **Vector::BLF::UncompressedFile**.

### virtual std::streampos Vector::BLF::AbstractFile::tellp () \[pure virtual\]

Get position in output sequence.

**Returns**

Write position

Implemented in **Vector::BLF::CompressedFile**, and **Vector::BLF::UncompressedFile**.

### virtual void Vector::BLF::AbstractFile::write (const char \* s, std::streamsize n) \[pure virtual\]

Write block of data.

**Parameters**

*s* Pointer to data \
 *n* Size of data

Implemented in **Vector::BLF::CompressedFile**, and **Vector::BLF::UncompressedFile**.

## Author

Generated automatically by Doxygen for Vector BLF from the source code.