---
name: "std::Expr"
section: "3"
platform: "linux"
package: "libstdc++5-3.3-doc"
version: "1:3.3.6-15"
release: "Debian 4.0 (Etch)"
platforms: ["linux"]
url: "https://new.carta.tech/std::Expr"
---

# std::Expr(3)

## NAME

std::Expr -

## SYNOPSIS

### Public Types

typedef Type **value\_type**\

### Public Member Functions

**Expr** (const Clos &)\
 const Clos & **operator()** () const\
 **value\_type** **operator\[\]** (size\_t) const\
 **valarray**\< **value\_type** \> **operator\[\]** (**slice**) const\
 **valarray**\< **value\_type** \> **operator\[\]** (const **gslice** &) const\
 **valarray**\< **value\_type** \> **operator\[\]** (const **valarray**\< bool \> &) const\
 **valarray**\< **value\_type** \> **operator\[\]** (const **valarray**\< size\_t \> &) const\
 **Expr**\< UnClos\< **\_\_logical\_not**, **std::Expr**, Clos \>, bool \> **operator!** () const\
 size\_t **size** () const\
 **value\_type** **sum** () const\
 **valarray**\< **value\_type** \> **shift** (int) const \
 **valarray**\< **value\_type** \> **cshift** (int) const \
 **value\_type** **min** () const\
 **value\_type** **max** () const\

### Private Attributes

const Clos **M\_closure**\

## Detailed Description

### template\<class Clos, typename Type\> class std::Expr\< Clos, Type \>

Definition at line 782 of file valarray\_meta.h.

## Author

Generated automatically by Doxygen for libstdc++-v3 Source from the source code.