---
name: "Vector_BLF_SystemVariable"
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_SystemVariable"
---

# Vector\_BLF\_SystemVariable(3)

SYS\_VARIABLE.

## NAME

Vector::BLF::SystemVariable - SYS\_VARIABLE.

## SYNOPSIS

\#include \<SystemVariable.h\>

Inherits **Vector::BLF::ObjectHeader**.

### Public Types

enum **Type** : uint32\_t { **Double** = 1, **Long** = 2, **String** = 3, **DoubleArray** = 4, **LongArray** = 5, **LongLong** = 6, **ByteArray** = 7 }\

Public Types inherited from **Vector::BLF::ObjectHeader** enum **ObjectFlags** : uint32\_t { **TimeTenMics** = 0x00000001, **TimeOneNans** = 0x00000002 }\

### Public Member Functions

void **read** (**AbstractFile** &is) override\
 void **write** (**AbstractFile** &os) override\
 uint32\_t **calculateObjectSize** () const override\

Public Member Functions inherited from **Vector::BLF::ObjectHeader** **ObjectHeader** (const ObjectType **objectType**, const uint16\_t **objectVersion**=0)\
 uint16\_t **calculateHeaderSize** () const override\

Public Member Functions inherited from **Vector::BLF::ObjectHeaderBase** **ObjectHeaderBase** (const uint16\_t **headerVersion**, const ObjectType **objectType**)\
 **ObjectHeaderBase** (const ObjectHeaderBase &)=default\
 ObjectHeaderBase & **operator=** (const ObjectHeaderBase &)=default\
 **ObjectHeaderBase** (ObjectHeaderBase &&)=default\
 ObjectHeaderBase & **operator=** (ObjectHeaderBase &&)=default\

### Public Attributes

uint32\_t **type** {}\
 type of system variable  uint32\_t **representation** {}\
 signed, later perhaps also string codepage  uint64\_t **reservedSystemVariable1** {}\
 uint32\_t **nameLength** {}\
 length of variable name in bytes  uint32\_t **dataLength** {}\
 length of variable data in bytes  uint64\_t **reservedSystemVariable2** {}\
 std::string **name** {}\
 variable name in MBCS  std::vector\< uint8\_t \> **data** {}\
 variable data

Public Attributes inherited from **Vector::BLF::ObjectHeader** uint32\_t **objectFlags** {**ObjectFlags::TimeOneNans**}\
 object flags  uint16\_t **clientIndex** {}\
 client index of send node  uint16\_t **objectVersion** {0}\
 object specific version  uint64\_t **objectTimeStamp** {}\
 object timestamp

Public Attributes inherited from **Vector::BLF::ObjectHeaderBase** uint32\_t **signature** {ObjectSignature}\
 signature (ObjectSignature)  uint16\_t **headerSize** {}\
 sizeof object header  uint16\_t **headerVersion** {}\
 header version (1)  uint32\_t **objectSize** {}\
 object size  ObjectType **objectType** {ObjectType::UNKNOWN}\
 object type

## Detailed Description

SYS\_VARIABLE.

System variable that can be used with CANoe.

## Member Enumeration Documentation

### enum Vector::BLF::SystemVariable::Type : uint32\_t

enumeration for type

**Enumerator**

- ***Double***

  DOUBLE

- ***Long***

  LONG

- ***String***

  STRING

- ***DoubleArray***

  Array of DOUBLE

- ***LongArray***

  Array of LONG

- ***LongLong***

  LONGLONG

- ***ByteArray***

  Array of BYTE

## Member Function Documentation

### uint32\_t Vector::BLF::SystemVariable::calculateObjectSize () const \[override\], \[virtual\]

Calculates the objectSize

**Returns**

object size

Reimplemented from **Vector::BLF::ObjectHeader**.

### void Vector::BLF::SystemVariable::read (AbstractFile & is) \[override\], \[virtual\]

Read the data of this object

**Parameters**

*is* input stream

Reimplemented from **Vector::BLF::ObjectHeader**.

### void Vector::BLF::SystemVariable::write (AbstractFile & os) \[override\], \[virtual\]

Write the data of this object

**Parameters**

*os* output stream

Reimplemented from **Vector::BLF::ObjectHeader**.

## Member Data Documentation

### std::vector\<uint8\_t\> Vector::BLF::SystemVariable::data {}

variable data Data value of the system variable.

### uint32\_t Vector::BLF::SystemVariable::dataLength {}

length of variable data in bytes Length of the data of the environment variable in bytes.

### std::string Vector::BLF::SystemVariable::name {}

variable name in MBCS Name of the system variable.

### uint32\_t Vector::BLF::SystemVariable::nameLength {}

length of variable name in bytes Length of the name of the system variable (without terminating 0)

### uint64\_t Vector::BLF::SystemVariable::reservedSystemVariable1 {}

reserved

### uint64\_t Vector::BLF::SystemVariable::reservedSystemVariable2 {}

reserved

## Author

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