vcl::OneTypeAtLeastSatisfiesCondition< Pred, Args > Struct Template Reference

Sets its value to true if there is at least one type in the given pack Args... that satisfies the given condition. More...

#include <vclib/base/filter_types.h>

Static Public Attributes
static constexpr bool	value = NumberOfTypes<ResTypes>::value != 0

Private Types
using	ResTypes = FilterTypesByCondition< Pred, Args... >::type

Detailed Description

template<template< typename > typename Pred, typename... Args>
struct vcl::OneTypeAtLeastSatisfiesCondition< Pred, Args >

Sets its value to true if there is at least one type in the given pack Args... that satisfies the given condition.

Usage:

// there is a type (int) that is integral
static const bool res = OneTypeAtLeastSatisfiesCondition<
    std::is_integral,
    int, float, double>::value;
static_assert(res == true, "");
 
static const bool res2 =
    OneTypeAtLeastSatisfiesCondition<
    std::is_integral,
    float, double>::value;
static_assert(res2 != true, "");

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

• vclib/core/include/vclib/base/filter_types.h