Fwrite Large File Support Windows

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c++ - fseek now supports large files - Stack Overflow

    https://stackoverflow.com/questions/6615953/fseek-now-supports-large-files
    Jul 07, 2011 · It appears that fseek now, at least in my implementation, supports large files naturally without fseek64, lseek or some strange compiler macro. When did this happen? #include <cstdio> #incl...

fwrite fread for large files Go4Expert

    https://www.go4expert.com/forums/fwrite-fread-files-t17822/
    Jun 04, 2009 · Hi, I am trying to write a 1 GB file in blocks of 100KB and read them back in 100KB blocks. First, I would like to write the whole 1 GB in consecutive blocks of 100kb and then read them back in 100kb consecutive blocks.

Handling large files > 4 GB - C / C++

    https://bytes.com/topic/c/answers/132776-handling-large-files-4-gb
    Jul 22, 2005 · Handling large files > 4 GB. C / C++ Forums on Bytes. ... describes large file support for Linux. Is there an equivalent under Windows? ... I know that Windows supports files that big but I have not been able to get my program to write past the 4 gig boundary. <snip>

fwrite issues with large data write

    https://social.msdn.microsoft.com/Forums/vstudio/en-US/7c913001-227e-439b-bf07-54369ba07994/fwrite-issues-with-large-data-write
    Oct 06, 2008 · I am using fwrite to store the array of structure with large size . As I am in 64 bit development when I pass the number of records as 64 bit value then fwrite hangs..and it could not handle large number of records, is there any solution to make disk I/O for large …

FIO19-C. Do not use fseek() and ftell() to compute the ...

    https://wiki.sei.cmu.edu/confluence/display/c/FIO19-C.+Do+not+use+fseek%28%29+and+ftell%28%29+to+compute+the+size+of+a+regular+file
    Compliant Solution (POSIX ftello()) If the code needs to handle large files, it is preferable to use fseeko() and ftello() because, for some implementations, they can handle larger file offsets than fseek() and ftell() can handle. If they are used, the file_size variable should have type off_t to avoid the possibility of overflow when assigning the return value of ftello() to it.[IEEE Std 1003.1:2013]: XSH, System Interfaces, fopen, XSH, System Interfaces, fwrite

C library function - fwrite() - Tutorialspoint

    https://www.tutorialspoint.com/c_standard_library/c_function_fwrite.htm
    Let us compile and run the above program that will create a file file.txt which will have following content − This is tutorialspoint.com Now let's see the content of the above file using the following program −

Very Slow Disk Write Performance for Large Block Sizes ...

    https://answers.microsoft.com/en-us/windows/forum/windows_7-performance/very-slow-disk-write-performance-for-large-block/2e2820e6-ba5f-4cf8-aee6-3d1c276138dc
    Jun 03, 2017 · Very Slow Disk Write Performance for Large Block Sizes I'm seeing slow write speeds from both Python and C code on some Windows workstations. I'm wondering if anyone has any ideas regarding if this is a known issue, know the cause, or how to resolve the issue?



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