Reading large txt file size> 300mb

[Manishkumar Patel]

how to read very large file and store into array size>300 mb

[Jeff Verdegan]

Hi, and welcome to the Ranch!

You'd use the same exact code as you would to read and store a smaller file.

But why do you need to store the whole file in memory? And why do you want to use an array?

[Manishkumar Patel]

Jeff Verdegan wrote:Hi, and welcome to the Ranch!

You'd use the same exact code as you would to read and store a smaller file.

But why do you need to store the whole file in memory? And why do you want to use an array?

i want to read large file and spilt into smaller file. suppose file having size 300 mb,i want to split into 30 file having each 10 mb size

[Tim Moores]

So you don't need to keep 300MB in memory, just 30MB, correct? That's a small amount of memory for a modern computer.

[Jeff Verdegan]

Tim Moores wrote:So you don't need to keep 300MB in memory, just 30MB, correct? That's a small amount of memory for a modern computer.

Not even that much. Just a 1-byte buffer would work, although it'd be horribly inefficient. A buffer of 8k-64k would be fine, and he probably wouldn't get any performance gain beyond that, but I don't see any particular reason not to just go with the full 30 MB.