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path.cpp
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path.cpp
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#include <date/tz.h>
#include <cpp11/strings.hpp>
/*
* This function won't do anything if `USE_OS_TZDB=1`. In that case, the date
* library will auto find the binary version of the TZDB on your computer,
* but this doesn't work on Windows and the binary parser has some issues.
* So instead we set `USE_OS_TZDB=0` in the Makevars so `set_install()` is
* always run.
*/
[[cpp11::register]]
void
tzdb_set_install_cpp(const cpp11::strings& path) {
if (path.size() != 1) {
cpp11::stop("Internal error: Time zone database installation path should have size 1.");
}
std::string string_path(path[0]);
#if !USE_OS_TZDB
date::set_install(string_path);
#endif
}
/*
* Force a reload of the internal tzdb structure.
* This allows you to update the database if your installation path has been
* changed.
*/
[[cpp11::register]]
void
tzdb_reload_cpp() {
#if !USE_OS_TZDB
date::reload_tzdb();
#endif
}
/*
* Determine at the R level if we are using the OS tzdb or not
*/
[[cpp11::register]]
bool
tzdb_use_os_tzdb_cpp() {
#if USE_OS_TZDB
return true;
#else
return false;
#endif
}