C++ 通过以下几个类支持文件的输入输出： ofstream: 写操作（输出）的文件类 (由ostream引申而来) ifst...
>> for using std::ifstream:: read(). Is there anything wrong with the way >> I'm getting the file?[/color] > > [] >[color=green] >> std::vector<cha r>vbuf(file.tel lg()); >> file.seekg(0, std::ios::beg); >> file.read(&vbuf[0], vbuf.size());[/color] > > ...
When reading from std::ifstream and the input ends, it doesn’t seem possible to differentiate between eof & read error. Attaching code that demonstrates the problem (forces a read error with the help of LockFileEx API). ifstream_issue.cpp I would expect that the latter case ha...
#include <fstream> using namespace std; struct Point{ string timeDate; double p; Point(string d1, double p1):timeDate(d1),p(p1){} }; int readData(const char * filename,vector<Point>& data){ ifstream ifs(filename); if(!ifs){ cout<<"file error"<<endl; return -1; } string dat...
using namespace std; struct Point { string timeDate; double p; Point(string d1, double p1) :timeDate(d1), p(p1) {} }; int readData(const char* filename, vector<Point>& data) { ifstream ifs(filename); if (!ifs) { cout << "file error" << endl; ...