---
name: "__gnu_parallel::lexicographic"
section: "3cxx"
platform: "linux"
package: "libstdc++6-4.4-doc"
version: "4.4.7-2"
release: "Debian 7 (Wheezy)"
platforms: ["linux"]
url: "https://new.carta.tech/__gnu_parallel::lexicographic/3cxx"
---

# \_\_gnu\_parallel::lexicographic(3cxx)

## NAME

\_\_gnu\_parallel::lexicographic\< T1, T2, Comparator \> -

## SYNOPSIS

Inherits **std::binary\_function\< std::pair\< T1, T2 \>, std::pair\< T1, T2 \>, bool \>**.

### Public Types

typedef **std::pair**\< T1, T2 \> **first\_argument\_type**\
 typedef bool **result\_type**\
 typedef **std::pair**\< T1, T2 \> **second\_argument\_type**\

### Public Member Functions

**lexicographic** (Comparator &\_comp)\
 bool **operator()** (const **std::pair**\< T1, T2 \> &p1, const **std::pair**\< T1, T2 \> &p2) const \

## Detailed Description

### template\<typename T1, typename T2, typename Comparator\>class \_\_gnu\_parallel::lexicographic\< T1, T2, Comparator \>

Compare a pair of types lexicographically, ascending.

Definition at line 55 of file multiseq\_selection.h.

## Member Typedef Documentation

### typedef std::pair\< T1, T2 \> std::binary\_function\< std::pair\< T1, T2 \> , std::pair\< T1, T2 \> , bool \>::first\_argument\_type` [inherited]`

the type of the first argument (no surprises here)

Definition at line 114 of file stl\_function.h.

### typedef bool std::binary\_function\< std::pair\< T1, T2 \> , std::pair\< T1, T2 \> , bool \>::result\_type` [inherited]`

type of the return type

Definition at line 118 of file stl\_function.h.

### typedef std::pair\< T1, T2 \> std::binary\_function\< std::pair\< T1, T2 \> , std::pair\< T1, T2 \> , bool \>::second\_argument\_type` [inherited]`

the type of the second argument

Definition at line 117 of file stl\_function.h.

## Author

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