unsigned char* pFileBytes = nullptr; unsigned int nTotalSize = 0; std::ifstream infile("1.dat", std::ios_base::in | std::ios_base::binary); if (infile.is_open()) { infile.seekg(0, std::ios_base::end); unsigned long long nFileSize = infile.tellg(); if (0 == nFileSize)...
// 打开文件,获得文件流 std::ifstream inFile(fileName.c_str(), std::ios::in | std::ios::binary); std::ostringstream oss; oss << inFile.rdbuf(); std::string buffer = oss.str(); inFile.close();
问题出现的原因：在对类中的字段或属性直接赋值的时候出现异常而造成的这个异常。 例如： class MyClass { public static string ConnectionString = GetConnectionString(); private static string GetConnectionString() { throw new Exception(); } } 在使用这个类的时候就会引发该异常 ...
inFile.open(location);中的参数不对.
#include <assert.h> using namespace std;; int main(int argc, char **argv) { std::string filename("D:/My projects/Test/test.cfg"); std::cout << "opening '" << filename << "'..." << std::endl; std::ifstream infile(filename.c_str()); assert(infile.good()...
5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 #include <iostream>usingnamespacestd;enumBOOL { FALSE , TRUE };intmain(intargc,char**argv)//returns 1 on error{if(argc != 2) { cout <<"Usage: argv[0] <infile>\n";return(1); }//open the input streamifst...
ifstream *inFile =newifstream(szFile); std::wstring szwFileStr((std::istreambuf_iterator<wchar_t>(*inFile)),std::istreambuf_iterator<wchar_t>()); It fails,on the bold part Need the string, containing the input from the file, to be a std::wstring (needs to handle somce chars, no...
ifstream的用法#include<fstream.h> #include<iostream.h> //usingnamespacestd; staticcharch; main() { ifstreaminfile(filename,ios::in); if(!infile) { cout<<"openerror!"<<endl; exit(1); } infile.get(ch); cout.put(ch); cout<<endl; system("pause"); } 为何我这样写的时候程序说...
【题目】ifstream的用法#includefstream.h#includeiostream.h //usingnamespacestd; staticcharch; main() { ifstreaminfile(filename,ios::in); if(!infile) { cout"openerror!"endl; exit(1); } infile.get(ch); cout.put(ch); coutendl;system("pause");}为何我这样写的时候程序说ifstream没有定义呢...
ifstream infile(file2, ios::in); while (getline(infile, s)) cout << s << endl; infile.close(); } void search1(const char* fnd_file,const char*str) { string s; ifstream infile(fnd_file, ios::in); int linenum = 0; ...