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Public Member Functions | Static Public Member Functions | Private Member Functions | Private Attributes | List of all members
fv::Count< T > Class Template Reference

Returns the count of elements in the input vector passing a test function. More...

#include <value.hpp>

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Public Member Functions

 Count (Function< bool(T)> &selector, Value< std::vector< T >> *v, const std::string alias)
 
- Public Member Functions inherited from fv::DerivedValue< int >
 DerivedValue (const std::string &name, const std::string &alias="")
 
void log ()
 
int & get_value ()
 Calculate, if necessary, and return the value held by this object.
 
- Public Member Functions inherited from fv::Value< int >
 Value (const std::string &name, const std::string &alias="")
 
void enable_logging (const std::function< std::string(int)> &value_to_string=[](int){return "";})
 
void disable_logging ()
 

Static Public Member Functions

static std::string fmt_name (Function< bool(T)> &selector, Value< std::vector< T >> *v)
 

Private Member Functions

void update_value ()
 Updates the internal value. More...
 

Private Attributes

Function< bool(T)> & selector
 
Value< std::vector< T > > * v
 

Additional Inherited Members

- Protected Attributes inherited from fv::DerivedValue< int >
int value
 
- Protected Attributes inherited from fv::Value< int >
std::function< std::string(int)> value_to_string
 

Detailed Description

template<typename T>
class fv::Count< T >

Returns the count of elements in the input vector passing a test function.

Definition at line 864 of file value.hpp.

Member Function Documentation

◆ update_value()

template<typename T>
void fv::Count< T >::update_value ( )
inlineprivatevirtual

Updates the internal value.

This function should be overridden by any child class to do the actual work of updating value based on whatever rules the class chooses. Normally, this consists of geting the values from some associated Value objects, doing some calculation on them, and storing the result in value.

Implements fv::DerivedValue< int >.

Definition at line 869 of file value.hpp.

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The documentation for this class was generated from the following file: