Provided by: libstdc++-11-doc_11.5.0-1ubuntu1~24.04_all 

NAME
std::is_placeholder< _Tp > - Determines if the given type _Tp is a placeholder in a bind() expression
and, if so, which placeholder it is.
SYNOPSIS
#include <functional>
Inherits std::integral_constant< int, 0 >.
Public Types
typedef integral_constant< int, __v > type
typedef int value_type
Public Member Functions
constexpr operator value_type () const noexcept
constexpr value_type operator() () const noexcept
Static Public Attributes
static constexpr int value
Detailed Description
template<typename _Tp>
struct std::is_placeholder< _Tp >"Determines if the given type _Tp is a placeholder in a bind()
expression and, if so, which placeholder it is.
C++11 [func.bind.isplace].
Author
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libstdc++ std::is_placeholder< _Tp >(3cxx)