Allocate objects on the stack if they (a) don't have a destructor, and (b) don't override the delete operator (on top of the regular conditions for stack allocation that also apply to arrays, structs, etc.). The "no destructor" clause is not strictly necessary, but calling them at the right time would be tricky to say the least; it would involve, among other things, "manually" inserting a try-finally block around anything that might throw exceptions not caught in the current function. Note: objects with custom new operators are automatically ignored because they don't use the regular allocation runtime call, so there's no need to pay special attention to them.

#ifndef LDC_CONF_CONFIGFILE_H
#define LDC_CONF_CONFIGFILE_H

#include <vector>

namespace libconfig
{
    class Config;
}

class ConfigFile
{
public:
    typedef std::vector<const char*>    s_vector;
    typedef s_vector::iterator          s_iterator;

public:
    ConfigFile();
    ~ConfigFile();

    bool read(const char* argv0, void* mainAddr, const char* filename);

    s_iterator switches_begin()   { return switches.begin(); }
    s_iterator switches_end()     { return switches.end(); }

private:
    libconfig::Config* cfg;

    s_vector switches;
};

#endif // LDC_CONF_CONFIGFILE_H