Problems openning huge files

Dear friends,

I have a huge problem. I must open files greater than 2Gb in a C program, but I could not do this with the fopen() or ifstream().

How can I open and read big files like that? :confused:

Please, could someone help me?


Thanks in advance.


Regards,

Antonio.

Quote:

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Originally posted by acoelho74
Dear friends,

I have a huge problem. I must open files greater than 2Gb in a C program, but I could not do this with the fopen() or ifstream().

How can I open and read big files like that? :confused:

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I'll speculate, since you provide no insight as to what you're using. Get a new OS, BIOS, and compiler.

Quzah.

A little more details...

I'm developing a system that must open and process text files with more than 2Gb of data.

I tried to open this files with the fopen() and ifstream() functions, but it didn't work. As it seems, the fopen() function has a limit of 2Gb.

I' developing this in a HP-UX system, with enoght memory to do that.

I think that this functions doesn't support this size of files.


Thanks.

Hmm, you receive any error message, what errno says?
with glibc, I think you have to use -D_FILE_OFFSET_BITS=64 or *64.

Have you look at open()