Fastest method of writing to a file 2

[Wings]

Hello,
I am going to be writing a large amount of data in the form of a very large character array to a text file. What is the fastest way to do this, as speed will be very important?
Thankyou

 

[Salem]

Well if your array already contains newlines (as if you had read the whole file into memory in one go), then look at either write() or fwrite()

[tt]ssize_t write(int fd, const void *buf, size_t count);
size_t fwrite(const void *ptr, size_t size, size_t nmemb, FILE *stream);
[/tt]

--

 

[ArkM]

In case of (portable) stream i/o fwrite() using don't forget to set larger buffer size with

setvbuf(stream,0,_IOFBF,bufsize);

after fopen() before 1st fwrite().
It seems on Windows the best way will be CreateFile/WriteFile API using.