Can anyone explain in simple English about the differences between printf, fprintf, and sprintf with examples? What stream is it in? I’m really confused between the three of these while reading about “File Handling in C”. 8 Answers 8
I’m trying to write huge amounts of data onto my SSD(solid state drive). And by huge amounts I mean 80GB. I browsed the web for solutions, but the best I came up with was this: #include <fstream> const unsigned long long size = 64ULL*1024ULL*1024ULL; unsigned long long a[size]; int main() { std::fstream myfile; myfile = … Read more
I have a small server program that accepts connections on a TCP or local UNIX socket, reads a simple command and (depending on the command) sends a reply. The problem is that the client may have no interest in the answer and sometimes exits early. So writing to that socket will cause a SIGPIPE and … Read more
Is there a default/official/recommended way to parse CSV files in C#? I don’t want to roll my own parser. Also, I’ve seen instances of people using ODBC/OLE DB to read CSV via the Text driver, and a lot of people discourage this due to its “drawbacks.” What are these drawbacks? Ideally, I’m looking for a … Read more
Someone explain to me what InputStream and OutputStream are? I am confused about the use cases for both InputStream and OutputStream. If you could also include a snippet of code to go along with your explanation, that would be great. Thanks! 10 Answers 10
I am serializing an structure into a MemoryStream and I want to save and load the serialized structure. So, How to Save a MemoryStream into a file and also load it back from file? 9 Answers 9
I’m having some brain failure in understanding reading and writing text to a file (Python 2.4). # The string, which has an a-acute in it. ss = u’Capit\xe1n’ ss8 = ss.encode(‘utf8′) repr(ss), repr(ss8) (“u’Capit\xe1n’”, “‘Capit\xc3\xa1n’”) print ss, ss8 print >> open(‘f1′,’w’), ss8 >>> file(‘f1’).read() ‘Capit\xc3\xa1n\n’ So I type in Capit\xc3\xa1n into my favorite editor, in … Read more
With Java: I have a byte[] that represents a file. How do I write this to a file (ie. C:\myfile.pdf) I know it’s done with InputStream, but I can’t seem to work it out. 12 Answers 12
I’m using .NET 3.5, trying to recursively delete a directory using: Directory.Delete(myPath, true); My understanding is that this should throw if files are in use or there is a permissions problem, but otherwise it should delete the directory and all of its contents. However, I occasionally get this: System.IO.IOException: The directory is not empty. at … Read more
I was surprised to find today that I couldn’t track down any simple way to write the contents of an InputStream to an OutputStream in Java. Obviously, the byte buffer code isn’t difficult to write, but I suspect I’m just missing something which would make my life easier (and the code clearer). So, given an … Read more
