1. I think the *C* functions will be faster than *C++*'s, e.g. printf vs cout U can use fwrite to write ur array into a file
2. To compare ur two methods, I think the first one will not be more slow. Because of the *system buffer*, it is not true that there is a disk write when there is a element outout! 2005/12/16, [EMAIL PROTECTED] <[EMAIL PROTECTED]>: > > Hello, > > I need to store an array in a file. The array length is 1000. I want > the fastest disk writing method to work. I know reading/writing a big > block from the hard disk is faster because it involves only 1 seek. I > seem to have 2 optons : > > Option 1) for(i=1 to 1000) > fll<<Array[i]; > > Option 2) Store the array contents into a single string str and then > fll<<str; > > where fll is the file pointer. Which would be faster. I am concerened > about the performance because I need to write numerical data in a file > of size around 4 Gb. It may be possible to optimize the seek time if I > some how know how much block size could it write in one go. > > Regards > Anirudh Koul > http://cs.dal.ca/~koul/ > > -- myblog: http://gnor.net/daizisheng/blog/
