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https://stackoverflow.com/questions/14533836/large-file-support-not-working-in-c-programming
Jan 25, 2013 · Add the option -D_LARGE_FILE_SOURCE=1 to gcc compilation.. fseek64 is a C function. To make it available you'll have to define _FILE_OFFSET_BITS=64 before including the system headers. That will more or less define fseek to behave as actually fseek64.Or you could do it in the compiler arguments e.g. gcc -D_FILE_OFFSET_BITS=64, that you are already doing.
https://users.suse.com/~aj/linux_lfs.html
Large File Support in Linux. To support files larger than 2 GiB on 32-bit systems, e.g. x86, PowerPC and MIPS, a number of changes to kernel and C library had to be done. This is called Large File Support (LFS). The support for LFS should be complete now in Linux and this article should give a short overview of the current status.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=8610
Large file support under the std namespace appears to be broken for my version of the gcc 3.2 compiler (files larger than 2 GB can't be written using std::fstream).
https://sourceforge.net/p/mingw/mailman/message/14064517/
Hello, The Win32 API supports large files, i.e. > 2 gigabytes (the maximum value of an signed long). The POSIX'ish folks support this with a few standardized functions, off64_t, fopen64, ftello64, etc that use 64 bit integers to move around the file.
https://www.linuxquestions.org/questions/linux-newbie-8/large-file-size-support-for-linux-268687/
Jan 11, 2005 · For 32-bit systems the limit is 231 (2 GiB) but using the LFS interface on filesystems that support LFS applications can handle files as large as 263 bytes. For 64-bit systems the file size limit is 263 bytes unless a filesystem (like NFSv2) only supports less.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=20366
A lot of applications test for _LARGE_FILES in the C library and will set it as a configuration option if supported. As far as straight C goes, there's no problem with gcc on AIX. But if _LARGE_FILES is set, the fact that g++ can't compile C++ applications using cstdio on …
[Bug libstdc++/91947] std::filesystem::file_size will return wrong value on 32bit platforms with large files support. redi at gcc dot gnu.org Thu, 23 Jan 2020 01:32:57 -0800
https://gcc.gnu.org/gcc-9/changes.html
GCC 9 Release Series Changes, New Features, and Fixes. ... This standard is in the early stages of development and the only feature supported in GCC 9 is _Static_assert with a single argument ... g++ now unconditionally enables large file support when compiling 32-bit code.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=22388
GCC Bugzilla – Bug 22388 When cross-compiling libstdc++ for mingw, enable large file support (LFS) Last modified: 2009-01-27 04:30:16 UTC
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