Boost C++ Libraries

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Function symbol_location

boost::dll::symbol_location

Synopsis

// In header: <boost/dll/runtime_symbol_info.hpp>


template<typename T> 
  boost::filesystem::path 
  symbol_location(const T & symbol, boost::system::error_code & ec);
template<typename T> boost::filesystem::path symbol_location(const T & symbol);

Description

On success returns full path and name of the binary object that holds symbol. Examples:

 int var;
 void foo() {}

 int main() {
    dll::symbol_location(var);                     // returns program location
    dll::symbol_location(foo);                     // returns program location
    dll::symbol_location(std::cerr);               // returns location of libstdc++: "/usr/lib/x86_64-linux-gnu/libstdc++.so.6"
    dll::symbol_location(std::placeholders::_1);   // returns location of libstdc++: "/usr/lib/x86_64-linux-gnu/libstdc++.so.6"
    dll::symbol_location(std::puts);               // returns location of libc: "/lib/x86_64-linux-gnu/libc.so.6"
 }

Parameters:

ec

Variable that will be set to the result of the operation.

symbol

Symbol which location is to be determined.

Returns:

Path to the binary object that holds symbol or empty path in case error.

Throws:

std::bad_alloc in case of insufficient memory. Overload that does not accept boost::system::error_code also throws boost::system::system_error.

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