Search DaniWeb - ifstream

Re: ifstream? 10 Years Ago by NathanOliver `ifstream` is a class that is used for reading files. `file_in` is an object of the class `ifstream` and it is used in the program to read from a file. [Here](http://www.cplusplus.com/reference/fstream/ifstream/) is a good reference for what you dan do with an `ifstream` object. Re: ifstream ReadFile 16 Years Ago by Ancient Dragon >>ifstream ReadFile("C:\\File1.txt"); That is text mode. Here is binary mode: [icode]ifstream ReadFile("C:\\File1.txt", ios::binary);[/icode] ifstream 18 Years Ago by Firestone … opens a txt file with the ID information, but the ifstream part isnt working, I know its because I put a…:"<<endl; cin>>id; id+=ext; ifstream file(id); file>>first; file>>last… ifstream help 18 Years Ago by rodkay Hi all, I require some help using ifstream. I want to open a file who's name is …; ".txt" [/code] i did try the following ... [code] ifstream airportsSource ("Airports_" << airlineICAO << "… ifstream? 10 Years Ago by lewashby In the following program what is `ifstream`? It looks like it might be a Class name making `… file name and press ENTER: "; cin.getline(filename, 80); ifstream file_in(filename); if(!file_in) { cout << "File "… Re: ifstream 18 Years Ago by Ancient Dragon open() method takes a char* and you are passing a std::string class. [code] ifstream file(id[color=red].c_str()[/color]); [/code] Re: ifstream help 18 Years Ago by rodkay …; string tempString3 = ".txt"; airportFileName = tempString1+tempString2+tempString3; [B] ifstream airportSource; airportSource.open(airportFileName);[/B] /* if (!airportsSource) { cerr <<… Re: ifstream help 18 Years Ago by John A >airportSource.open(airportFileName); ifstream::open() expects a C-style string as a parameter, not a C++ string. To convert a C++ string into a C-style string, use the [inlinecode]c_str[/inlinecode] member function: [code=cplusplus]airportSource.open(airportFileName.c_str());[/code] Re: ifstream help 18 Years Ago by rodkay Thank you very much Joe !!!!! I used [code]ifstream airportsSource(airportFileName.c_str());[/code] works fine. :) Re: ifstream 16 Years Ago by VernonDozier … hiarchy of files following numbers. Thanks ! [code] std::string Line; ifstream GetLine1("C:\\1.0.0.txt"); while( getline…;fstream> using namespace std; int main () { std::string Line; ifstream GetLine1 ("C:\\1.0.0.txt"); while( getline… ifstream 19 Years Ago by lsu420luv …]int main() { //set ofstream and fstream to fin and fout ifstream fin; ofstream fout; //open input streams and output stream fin… Re: ifstream 19 Years Ago by lsu420luv so how would I set second stream? would i just do another ofstream then the new name like ifstream fin2? Re: ifstream 19 Years Ago by Bench [QUOTE=lsu420luv]so how would I set second stream? would i just do another ofstream then the new name like ifstream fin2?[/QUOTE]Yes, that would work. ifstream 16 Years Ago by Jennifer84 … hiarchy of files following numbers. Thanks ! [code] std::string Line; ifstream GetLine1("C:\\1.0.0.txt"); while( getline… Re: ifstream 16 Years Ago by Jennifer84 …;fstream> using namespace std; int main () { std::string Line; ifstream GetLine1 ("C:\\1.0.0.txt"); while( getline… ifstream 15 Years Ago by jigglymig1 … phoneNumber[PEOPLE][9]; char email[PEOPLE][32]; int count=0; ifstream inFile; inFile.open("book.txt"); while(inFile) { count… ifstream("path"); 17 Years Ago by Jennifer84 I am trying to use ifstream to read from a file. When you use ifstream you have to specify the path like this…. [code] ifstream Symb("Folder1\\Folder2\\File1.txt"); [/code] Instead of …; When I try to put path into the parantheses of ifstream I have a lot of compiler errors. Any idéas… ifstream - changing the default input behavior 17 Years Ago by Heli …want to change the default way in which the ifstream's operator>> reads in data. Alas… this possible? Is it possible to change the ifstream to look for comma's instead of blank spaces… readFile(inFile, custList); inFile.close(); cin.get(); } void readFile(ifstream &inFile, CustomerList &list) { if(inFile) { string … ifstream, checking a file exists 12 Years Ago by s1994 …tried an example I found on the web: std::ifstream my_file("file.txt"); Adding this to my…\code\c++\testingc++\testingc++\testingc++.cpp(10): error C2039: 'ifstream' : is not a member of 'std' 1>…code\c++\testingc++\testingc++\testingc++.cpp(10): error C2065: 'ifstream' : undeclared identifier 1>c:\users\john\documents\… Re: ifstream problem 14 Years Ago by Fbody …quot;Error opening 'testFile.csv'"; return 1; } ifstream CSVin("testFile.csv"); if (CSVin.is_open()) {… " << inputFloat << " from ifstream CSVin." << endl; } } } else { cout…CSVin is corrupt Read value 69.6 from ifstream CSVin. input file stream CSVin is corrupt… Re: ifstream("path"); 17 Years Ago by Jennifer84 … Everything I have compile but when using the last line: ifstream Symb(path2); I will have compilerror: [I]cannot convert parameter… path2 is in the correct format anyway, std::string wich ifstream should take. [code] std::string path2; MarshalString(path, path2… ifstream and ofstream 12 Years Ago by RonKevin … to cope up...i tried researching for ifstream.h and ofstream.h....and so far ifstream.h is for reading a file…, I understood the ofstream.h.100%(maybe) but no idea ifstream.h..(yea, im using TURBO c++ 4.5 compiler..its… because i think i'll need both ofstream.h and ifstream.h...right?...can you please give me a simple code… Re: ifstream("path"); 17 Years Ago by Jennifer84 …FreeHGlobal(IntPtr((void*)chars)); } std::string path2; MarshalString(path, path2); ifstream Symb(path2); [/code] [QUOTE=codeaa;542003][code=cpp] void MarshalString…(IntPtr((void*)chars)); } std::string path2; MarshalString(Path, path2); ifstream Symb(path2);[/code] You should mention that you are using… Re: ifstream and ofstream 12 Years Ago by Ancient Dragon … code be correct. > researching for ifstream.h and ofstream.h....and so far ifstream.h is for reading a file, and… file right?? No. There are no such header files. fstream, ifstream and ofstream are all declared in the same header file… Re: ifstream("path"); 17 Years Ago by codeaa …::FreeHGlobal(IntPtr((void*)chars)); } std::string path2; MarshalString(Path, path2); ifstream Symb(path2);[/code] You should mention that you are using… Re: ifstream("path"); 17 Years Ago by codeaa [inlinecode]ifstream Symb(path2.c_str());[/inlinecode] Re: ifstream("path"); 17 Years Ago by Jennifer84 Yes, this worked great. Now I have also learned how to convert like this. Thank you very much for this help ! [QUOTE=codeaa;542053][inlinecode]ifstream Symb(path2.c_str());[/inlinecode][/QUOTE] ifstream & ostream 16 Years Ago by SonxQ7 … function expecting an ostream...Should this be a problem? [code] ifstream fleetin; fleetin.open (filename); read(fleetin); //Error.... : cannot convert parameter… 1 from 'std::ifstream' to 'std::ostream &' [/code] My parameter is declared as… ifstream identifier error 13 Years Ago by bobanderson93 … float unitcost[SIZE]; char description[SIZE][MAXNAME]; public: void ReadFromFile(ifstream); void SortByDescription(); void Output(); }; #endif[/CODE] this is the…1], temp); done = false; } } } int main(void) { Inventory inventory; ifstream fin; char filename[30]; cout << "Enter filename… ifstream making me mad! TOTAL newb question 11 Years Ago by mixelplik …problem PLEASE HELP! What's happening is ifstream is doing God-knows-what, and then… memory location. There is no communication betwixt ifstream and the array. Please, please, please …= 8; int numsRead[len]; int count = 0; ifstream inputFile; inputFile.open("eight.txt"); while(count …