Need fast, low-level C++ File IO functions for LARGE files!
$30-100 USD
Suljettu
Julkaistu noin 20 vuotta sitten
$30-100 USD
Maksettu toimituksen yhteydessä
We need very low-level, safe, and fast binary File IO examples for C++.
These are going to be used in VC++ so please send a VC++ project example.
Purpose: We are reading files that can be several GIGABYTES! in [login to view URL] are very large database files. We need to seek through the files and retrieve or write data quickly, and I mean VERY quickly... like FoxPro!
We've looked at ifstream, FILE, etc. but don't know which is best suited for this job.
We would like an example of:
1. Open a file for binary access
2. Seek to a certain byte in the file
3. Read that byte or Write that byte
Remember, these are very large files, and we will be reading/writing to them very quickly.. so this needs to be top-notch code. Only the best of the best will do for this project.
Reply if you have any questions.
## Deliverables
1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done.
2) Deliverables must be in ready-to-run condition, as follows (depending on the nature of the deliverables):
a) For web sites or other server-side deliverables intended to only ever exist in one place in the Buyer's environment--Deliverables must be installed by the Seller in ready-to-run condition in the Buyer's environment.
b) For all others including desktop software or software the buyer intends to distribute: A software installation package that will install the software in ready-to-run condition on the platform(s) specified in this bid request.
3) All deliverables will be considered "work made for hire" under U.S. Copyright law. Buyer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement).
## Platform
Win32