dfhack/library/CompilerWorkAround.cpp

33 lines
931 B
C++

#include <regex>
namespace DFHack {
namespace neverCalled {
/**
* gcc/linstdc++ seems to generate code that links libstdc++ back to first
* shared object using std::regex. To allow plugins unload with std::regex in
* the code we need the std::regex functions inside libdfhack.so.
*
* If your plugin decides to use any overloads that aren't listed here it may
* stay in memory after dlclose.
*/
std::regex stdRegexPluginUnloadWorkaround()
{
std::regex fake("foo");
std::string haystack("bar is foo in the world");
std::regex fake2(std::string("bar"));
if (std::regex_match(haystack, fake))
std::swap(fake, fake2);
if (std::regex_search(haystack, fake))
std::swap(fake, fake2);
const char* haystack2 = "foo";
if (std::regex_match(haystack2, fake))
std::swap(fake, fake2);
if (std::regex_search(haystack2, fake))
std::swap(fake, fake2);
return fake;
}
}
}