/C++/Std::ifstream cant read file to large

Std::ifstream cant read file to large

// Buffer size 1 Megabyte (or any number you like)
size_t buffer_size = 1<<20;
char *buffer = new char[buffer_size];

std::ifstream fin("input.dat");

while (fin)
{
    // Try to read next chunk of data
    fin.read(buffer, buffer_size);
    // Get the number of bytes actually read
    size_t count = fin.gcount();
    // If nothing has been read, break
    if (!count) 
        break;
    // Do whatever you need with first count bytes in the buffer
    // ...
}

delete[] buffer;

Source: stackoverflow.com

Similar codes

0 vote130 views1 answer
Push_back a pair c++
C++
0 vote142 views1 answer
Std distance
C++
3 votes154 views2 answers
Prints out the elements in the array c++
C++
0 vote156 views1 answer
Foo foo little dogs
C++
0 vote159 views3 answers
Simplest code for stack implementation in c++
C++
2 votes112 views3 answers
Selection sort cpp
C++
0 vote135 views1 answer
Cpp loop through object
C++
5 votes126 views1 answer
C++ chrono
C++
2 votes123 views1 answer
How to complie with c++ 17
C++
0 vote123 views1 answer
Constexpr std::round c++
C++