---
name: "__gnu_parallel::_LoserTreeBase__Loser"
section: "3"
platform: "linux"
package: "gcc"
version: "16.2.1+r23+gd564253eb6c8-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/__gnu_parallel::_LoserTreeBase__Loser"
---

# \_\_gnu\_parallel::\_LoserTreeBase\_\_Loser(3)

Internal representation of a \_LoserTree element.

## NAME

\_\_gnu\_parallel::\_LoserTreeBase\< \_Tp, \_Compare \>::\_Loser - Internal representation of a \_LoserTree element.

## SYNOPSIS

\#include \<losertree.h\>

### Public Attributes

\_Tp **\_M\_key**\
 \_M\_key of the element in the \_LoserTree.  int **\_M\_source**\
 \_\_index of the \_\_source \_\_sequence.  bool **\_M\_sup**\
 flag, true iff this is a *maximum"*\_\_sentinel.

## Detailed Description

### template\<typename \_Tp, typename \_Compare\>

struct \_\_gnu\_parallel::\_LoserTreeBase\< \_Tp, \_Compare \>::\_Loser"Internal representation of a \_LoserTree element.

## Member Data Documentation

### template\<typename \_Tp, typename \_Compare\> \_Tp \_\_gnu\_parallel::\_LoserTreeBase\< \_Tp, \_Compare \>::\_Loser::\_M\_key

\_M\_key of the element in the \_LoserTree.

### template\<typename \_Tp, typename \_Compare\> int \_\_gnu\_parallel::\_LoserTreeBase\< \_Tp, \_Compare \>::\_Loser::\_M\_source

\_\_index of the \_\_source \_\_sequence.

### template\<typename \_Tp, typename \_Compare\> bool \_\_gnu\_parallel::\_LoserTreeBase\< \_Tp, \_Compare \>::\_Loser::\_M\_sup

flag, true iff this is a "maximum" \_\_sentinel.

## Author

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