Boost
C++ Libraries
...one of the most highly
regarded and expertly designed C++ library projects in the
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Coding Standards
This version of Boost is under active development. You are currently in the develop branch. The current version is 1.90.0.
Configures an execution context by reading environment variables.
class config_from_env : public execution_context::service_maker
|
Name |
Description |
|---|---|
|
config_from_env [constructor] |
Construct with the default prefix "asio". |
|
Add a concrete service to the specified execution context. |
The environment variable names are formed by concatenating the prefix, section, and key, with underscore as delimiter, and then converting the resulting string to upper case.
boost::asio::io_context my_io_context{ boost::asio::config_from_env{"my_app"}};
Header: boost/asio/config.hpp
Convenience header: boost/asio.hpp