std::placeholders Symbol Index (since C++11)

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`std`
std::chrono (C++11)
std::contracts (C++26)
std::execution (C++17)
std::filesystem (C++17)
std::linalg (C++26)
std::literals (C++14)
std::numbers (C++20)
std::placeholders (C++11)
std::pmr (C++17)
std::ranges (C++20)
std::regex_constants (C++11)
std::rel_ops (deprecated in C++20)
std::this_thread (C++11)
Macros
Removed symbols (Zombie names)
Exposition-only symbols

This page tries to list all the symbols that are available from the standard library in the namespace std:: placeholders . The symbols are written as follows:

Function names with () .
Templates with <> .

`_`

_ (underscore)

_1, _2, ..., _N (since C++11)

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Namespaces

Variants

std::placeholders Symbol Index (since C++11)

`_`

_ (underscore)