Top "Fclose" questions

Create a file if one doesn't exist - C

I want my program to open a file if it exists, or else create the file. I'm trying the following …

c fopen fclose freopen

What happens if I don't call fclose() in a C program?

Firstly, I'm aware that opening a file with fopen() and not closing it is horribly irresponsible, and bad form. This …

c file-io fopen fclose

ipad app exited abnormally with signal 11: Segmentation fault: 11

My app exited abnormally with signal 11. I don't know what that means. There is no crash log and the debugger …

iphone debugging ipad fclose

Check if a file that has been opened with fopen has been closed

gcc (GCC) 4.7.2 c89 Is it possible for check if a file has already closed? I have opened a file using …

c fopen fclose

fclose() causes Segmentation Fault

I've been trying simple file handling in C and I wanted to make sure that the file can be accessed …

c file-io segmentation-fault fopen fclose

Error handling in file opening

[Question 1] When I open a file into a function, generally I do something like this: int read_file (char *filename) { …

c file error-handling fopen fclose

How exactly does fopen(), fclose() work?

I was just wondering about the functions fopen, fclose, socket and closesocket. When calling fopen or opening a socket, what …

c windows sockets fopen fclose

Why glibc's fclose(NULL) cause segmentation fault instead of returning error?

According to man page fclose(3): RETURN VALUE Upon successful completion 0 is returned. Otherwise, EOF is returned and the global variable …

c linux segmentation-fault fclose

What happens to FILE pointer after file is closed?

I wish to know what happens to FILE pointer after the file is closed. Will it be NULL? Basically, I …

c file fclose

fclose Warning: fclose(): supplied argument is not a valid stream resource

I am getting the warning on my pages Warning: fclose(): supplied argument is not a valid stream resource Using the …

php fopen fwrite fclose