C++ Library - <thread>

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Introduction

Thread is a sequence of instructions that can be executed concurrently with other such sequences in multithreading environments, while sharing a same address spac.

Member types

Sr.No. Member type & description
1 id

It is a thread id.
2 Native handle type

It is a native handle type.

Member functions

Sr.No. Member function & description
1 (constructor)

It is used to construct thread.
2 (destructor)

It is used to destructor thread.
3 operator=

It is a move-assign thread.
4 get_id

It is used to get thread id.
5 joinable

It is used to check if joinable.
6 join

It is used to join thread.
7 detach

It is used to detach thread.
8 swap

It is used to swap threads.
9 native_handle

It is used to get native handle.
10 hardware_concurrency [static]

It is used to detect hardware concurrency.

Non-member overloads

Sr.No. Non-member overload & description
1 swap (thread)

It is used to swap threads.

Example

In below example for std::thread.

 #include <iostream> #include <thread> void foo() { std::cout << " foo is executing concurrently...\n"; } void bar(int x) { std::cout << " bar is executing concurrently...\n"; } int main() { std::thread first (foo); std::thread second (bar,0); std::cout << "main, foo and bar now execute concurrently...\n"; first.join(); second.join(); std::cout << "foo and bar completed.\n"; return 0; }

The output should be like this −

 main, foo and bar now execute concurrently... bar is executing concurrently... foo is executing concurrently... foo and bar completed.
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