ofstream

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std::ofstream, check if file exists before writing

I am implementing file saving functionality within a Qt application using C++. I am looking for a way to check to see if the selected file already exists before writing to it, so that I can prompt a[详细]

2023-01-27 11:17 分类：问答
Write quotes to a text file using ofstream, c++

I want to write out quotes to be in the file and I don\'t know how the syntax should look. ofstream file(\"myfile.txt\");[详细]

2023-01-26 04:20 分类：问答
Any reason why an std::ofstream object won't close properly?

I noticed in my C++ code that anytime I close an std::ofstream object I\'m unable to reopen the file I closed with std::ifstream. std::ifstream\'s open function will always fail.[详细]

2023-01-22 11:51 分类：问答
What is the output destination of ofstream?

In the following C++ function: void save_data(std::ofstream& csv) { csv << \"a message\"; } Something I don\'t understand: if save_data is called, where开发者_JS百科 does it[详细]

2023-01-12 02:48 分类：问答
ofstream doesn't write buffer to file

I\'m trying to write the contents of buf pointer to the file created by ofstream. For some reason the file is empty, however the contents of buf is never empty...What am I doing wrong?[详细]

2023-01-07 16:41 分类：问答
Outputting a vector of string objects to a file

I\'m trying to output a vector of string objects to a file. However, my code only out开发者_C百科puts the first two elements of each string.[详细]

2023-01-07 04:14 分类：问答
ofstream doesn't flush

I have the following code, running on Suse 10.1 / G++ 4.1.0, and it doesn\'t write to the file: #include <fstream>[详细]

2023-01-05 03:25 分类：问答
c++ passing unknown type to a function and any Class type definition

I am trying to create a generic class to write and read Objects to开发者_Go百科/from file. Called it ActiveRecord class[详细]

2022-12-31 02:17 分类：问答
C++ File I/O problem

I am trying to open a file which normally has content, for the purpose of tes开发者_StackOverflowting i will like to initialize the program without the files being available/existing so then the progr[详细]

2022-12-27 23:25 分类：问答
How do you search a document for a string in c++?

Here\'s my code so far: #include<iostream> #include<string> #include<fstream> using namespace std;[详细]

2022-12-26 07:42 分类：问答