c++ - C++ 应用程序可以创建多少个线程

Question

我想知道，一个 C++ 应用程序最多可以创建多少个线程。操作系统、硬件上限和其他因素是否会影响这些界限？

Answer 1

[C++11: 1.10/1]: [..] Under a hosted implementation, a C++ program can have more than one thread running concurrently. [..] Under a freestanding implementation, it is implementation-defined whether a program can have more than one thread of execution.

[C++11: 30.3/1]: 30.3 describes components that can be used to create and manage threads. [ Note: These threads are intended to map one-to-one with operating system threads. —end note ]

所以，基本上，这完全取决于实现和操作系统； C++ 不在乎!

它甚至没有在附件 B“实现数量”中列出建议!(实际上这似乎是一个遗漏)。