init_env_var() [1/2]

template<typename Target , typename Function >

void syten::EnvVars::init_env_var	(	char const *	name,
		Target &	target,
		Function	f,
		std::string const &	msg = ""
	)

Sets target to f(str) with str initialised from the environment variable name, if set.

If msg is set, then also prints msg.

References std::getenv(), and syten::logGI().

Referenced by init_env_vars().

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