---
title: addValue
framework: kernel
role: pseudoSymbol
path: kernel/osnumber/1808041-addvalue
---

# addValue

Adds a signed integer value to the internal integer value of the OSNumber object.

## Declaration

```occ
virtual void addValue(
 signed long longvalue); 
```

## Parameters

- `value`: The value to be added.

## Overview

Overview This function adds values as 64-bit integers, but masks the result by the bit size (see numberOfBits), so addition overflows will not necessarily be the same as for plain C integers.

## See Also

### Miscellaneous

- [free](kernel/osnumber/1808049-free.md)
- [init(const char *, unsigned int)](kernel/osnumber/1808057-init.md)
- [init(unsigned long long, unsigned int)](kernel/osnumber/1808065-init.md)
- [isEqualTo(const OSMetaClassBase *)](kernel/osnumber/1808071-isequalto.md)
- [isEqualTo(const OSNumber *)](kernel/osnumber/1808076-isequalto.md)
- [numberOfBits](kernel/osnumber/1808083-numberofbits.md)
- [numberOfBytes](kernel/osnumber/1808091-numberofbytes.md)
- [serialize](kernel/osnumber/1808097-serialize.md)
- [setValue](kernel/osnumber/1808102-setvalue.md)
- [unsigned16BitValue](kernel/osnumber/1808108-unsigned16bitvalue.md)
- [unsigned32BitValue](kernel/osnumber/1808115-unsigned32bitvalue.md)
- [unsigned64BitValue](kernel/osnumber/1808123-unsigned64bitvalue.md)
- [unsigned8BitValue](kernel/osnumber/1808129-unsigned8bitvalue.md)
- [withNumber(const char *, unsigned int)](kernel/osnumber/1808136-withnumber.md)
- [withNumber(unsigned long long, unsigned int)](kernel/osnumber/1808143-withnumber.md)