---
name: "sc_Identifier"
section: "3"
platform: "linux"
package: "libsc-doc"
version: "2.3.1-22"
release: "Debian 12 (Bookworm)"
platforms: ["linux"]
url: "https://new.carta.tech/sc_Identifier"
---

# sc\_Identifier(3)

Identifier's are used to distinguish and order objects.

## NAME

sc::Identifier - **Identifier**'s are used to distinguish and order objects.

## SYNOPSIS

`#include <identity.h>`

### Public Member Functions

**Identifier** ()\
 Create an **Identifier** for a null object.  **Identifier** (const **Identity** \*i)\
 Create an **Identifier** for the given object.  **Identifier** (const **Identifier** &i)\
 Create an **Identifier** for the given object.  **~Identifier** ()\
 The destructor does nothing.  void **operator=** (const **Identifier** &i)\
 Assign to the given **Identifier**.  int **operator\<** (const **Identifier** &i) const\
 Less than.  int **operator\>** (const **Identifier** &i) const\
 Greater than.  int **operator==** (const **Identifier** &i) const\
 Equal.  int **operator\<=** (const **Identifier** &i) const\
 Less than or equal.  int **operator\>=** (const **Identifier** &i) const\
 Greater than or equal.  int **operator!=** (const **Identifier** &i) const\
 Not equal.  void **print** (std::ostream &) const\

## Detailed Description

**Identifier**'s are used to distinguish and order objects.

On many architectures a pointer to the object will suffice, but the C++ standard only guarantees that this works for two pointers pointing within the same structure or array. Classes need to inherit from **Identity** to use this mechanism. **Identity**, **Identifier**, and the shorthand boolean operations may have to be modified for certain architectures. \

## Author

Generated automatically by Doxygen for MPQC from the source code.