编程语言
首页 > 编程语言> > C++ get file size

C++ get file size

作者:互联网

1/
#include <fstream> std::ifstream::pos_type filesize(const char* filename) { std::ifstream in(filename, std::ifstream::ate | std::ifstream::binary); return in.tellg(); }



2/

#include <fstream>

int getFileSize(const std::string &fileName)
{
    ifstream file(fileName.c_str(), ifstream::in | ifstream::binary);

    if(!file.is_open())
    {
        return -1;
    }

    file.seekg(0, ios::end);
    int fileSize = file.tellg();
    file.close();

    return fileSize;
}

标签:std,return,ifstream,int,tellg,C++,file,size
来源: https://www.cnblogs.com/jieliujas/p/12220731.html