import sys
sys.path.append("/usr/local/share/gcc-7.1.0/python")
sys.path.insert(0, '/home/sxhlinux/.gdb_stl') #注:将第二个参数中的路径改成自己的.gdb_stl文件夹路径
from libstdcxx.v6.printers import register_libstdcxx_printers
register_libstdcxx_printers (None)
end
#include <iostream>
#include <cstdlib>
#include <map>
#include <unordered_map>
using namespace std;
template <typename T1, typename T2>
bool merge_tokens(T1 &target, const T2 &rules)
{
auto pre = target.begin();
for (auto token = target.begin(); token != target.end(); ) {
if (pre == token) {
token ++;
continue;
}
auto range = rules.equal_range(pre->second);
auto it = range.first;
for (; it != range.second; it++) {
if (it->second == token->second) {
break;
}
}
if (it == range.second) {
pre = token;
token ++;
}
else {
pre->first += token->first;
// target.insert(std::make_pair<typename T1::key_type, typename T1::mapped_type>(pre->first + token->first, 16));
pre->second = 16;
token = target.erase(token);
pre = token;
}
}
}
int main ( int argc, char *argv[] )
{
unordered_map<string, size_t> tokens = {{"def", 22}, {"ghi", 100}, {"abc", 22}};
unordered_multimap<size_t, size_t> rules = {{22, 100}, {100, 22}, {1, 38}};
merge_tokens(tokens, rules);
return EXIT_SUCCESS;
} /* ---------- end of function main ---------- */
(gdb) whatis target type = std::unordered_map<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, unsigned long> & (gdb) whatis target.begin() type = std::unordered_map<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, unsigned long, std::hash<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::equal_to<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, unsigned long> > >::iterator (gdb) whatis pre type = std::__detail::_Node_iterator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, unsigned long>, false, true>
target.insert(std::make_pair<typename T1::key_type, typename T1::mapped_type>(pre->first + token->first, 16)); target.erase(pre); token = target.erase(token); pre = token;
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