Boost C++ Libraries

...one of the most highly regarded and expertly designed C++ library projects in the world. — Herb Sutter and Andrei Alexandrescu, C++ Coding Standards

This is the documentation for an old version of boost. Click here for the latest Boost documentation.

Helper functions

Boost.Context provides easy access to the stack related limits defined by the environment.

std::size_t default_stacksize();

std::size_t minimum_stacksize();

std::size_t maximum_stacksize();

bool is_stack_unbound();

std::size_t pagesize();

std::size_t page_count( std::size_t stacksize);

`std::size_t default_stacksize()`

Returns:: Returns a default stack size, which may be platform specific. The present implementation returns a value of 256 kB.

`std::size_t minimum_stacksize()`

Returns:: Returns the minimum size in bytes of stack defined by the environment.
Throws:: Nothing.

`std::size_t maximum_stacksize()`

Preconditions:: is_stack_unbound() returns false.
Returns:: Returns the maximum size in bytes of stack defined by the environment.
Throws:: Nothing.

`bool is_stack_unbound()`

Returns:: Returns true if the environment defines no limit for the size of a stack.
Throws:: Nothing.

`std::size_t pagesize()`

Returns:: Returns how many bytes the operating system allocates for one page.
Throws:: Nothing.

`std::size_t page_count( std::size_t stacksize)`

Returns:: Returns how many pages have to be allocated for a stack of stacksize bytes.
Throws:: Nothing.