// create a key considering the resource and variable, and check if key exists in the global map:
// if it doesn't, set the variable to zero.
if (static std::set<std::string, std::less<>> platform_variables;
- platform_variables.emplace(std::string(resource) + get_name()).second)
+ platform_variables.emplace(resource + get_name()).second)
set_event(now, 0);
add_event(now, value);