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

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basic_socket::available (1 of 2 overloads)

basic_socket::available (1 of 2 overloads)

Determine the number of bytes available for reading.

std::size_t available() const;

This function is used to determine the number of bytes that may be read without blocking.

Return Value

The number of bytes that may be read without blocking, or 0 if an error occurs.

Exceptions

boost::system::system_error: Thrown on failure.