我有裝載問題/讀取如何在C++中將二進制文件加載到「vector <vector < bitset<32>>」中?
vector<vector< bitset<32> >
(被稱爲/在我的代碼Typedef的人口)
它使用下面的代碼保存:
void genetic_algorithm::save_generation(population pop_to_save, string filename){
std::ofstream file(filename, std::ofstream::binary);
unsigned long n;
for(size_t i = 0; i < pop_to_save.size(); i++)
{
if (pop_to_save[i].size() > 0)
{
n = pop_to_save[i][0].to_ulong();
const char* buffer = reinterpret_cast<const char*>(&n);
file.write(buffer, pop_to_save[i].size());
}
}
}
的我需要的東西是一個可以加載的函數,即:
population genetic_algorithm::load_generation(string filename){
// TODO
}
最好的問候,
Mathias。
編輯
我已經解決了我自己的問題(從評論有點幫助) 這裏爲任何最終的代碼,可能會面臨同樣的問題:
void genetic_algorithm::save_generation(population pop_to_save, string filename){
std::ofstream file(filename, std::ofstream::binary);
unsigned long n;
for(size_t i = 0; i < pop_to_save.size(); i++) {
for (size_t j = 0; j < pop_to_save[i].size(); j++) {
n = pop_to_save[i][j].to_ulong();
file.write(reinterpret_cast<const char*>(&n), sizeof(n));
}
}
std::cout << "Saved population to: " << filename << '\n';
}
population genetic_algorithm::load_generation(string filename){
std::ifstream file(filename, std::ofstream::binary);
population loaded_pop (20, std::vector<bitset<32>> (394,0));
unsigned long n;
for(size_t i = 0; i < 20; i++) {
for (size_t j = 0; j < 394; j++) {
file.read(reinterpret_cast<char*>(&n), sizeof(n));
loaded_pop[i][j] = n;
}
}
std::cout << "Loaded population from: " << filename << '\n';
return loaded_pop;
}