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MinGW ("Minimalist GNU for Windows"), formerly mingw32, is a free and open source software development environment to create Microsoft Windows applications.. MinGW includes a port of the GNU Compiler Collection (GCC), GNU Binutils for Windows (assembler, linker, archive manager), a set of freely distributable Windows specific header files and static import libraries which enable the use of the ...
Mingw-w64 is a free and open-source suite of development tools that generate Portable Executable (PE) binaries for Microsoft Windows.It was forked in 2005–2010 from MinGW (Minimalist GNU for Windows).
A memory-mapped file is a segment of virtual memory [1] that has been assigned a direct byte-for-byte correlation with some portion of a file or file-like resource. This resource is typically a file that is physically present on disk, but can also be a device, shared memory object, or other resource that an operating system can reference through a file descriptor.
It was also available in a bundle called Visual C++ 16/32-bit Suite, which included Visual C++ 1.5. [14] Visual C++ 2.0, which included MFC 3.0, was the first version to be 32-bit only. In many ways, this version was ahead of its time, since Windows 95, then codenamed "Chicago", was not yet released, and Windows NT had only a small market share ...
In computing, mmap(2) is a POSIX-compliant Unix system call that maps files or devices into memory. It is a method of memory-mapped file I/O. It implements demand paging because file contents are not immediately read from disk and initially use no physical RAM at all.
Memory-mapped I/O is preferred in IA-32 and x86-64 based architectures because the instructions that perform port-based I/O are limited to one register: EAX, AX, and AL are the only registers that data can be moved into or out of, and either a byte-sized immediate value in the instruction or a value in register DX determines which port is the source or destination port of the transfer.
As of 2024, Windows 10 is estimated to have a 64% share of Windows PCs, [27] still 2 times its successor Windows 11's share of 32% (and 19 times Windows 7's 3.3% share). Windows 10 has an estimated 46% share of all traditional PCs (the rest being other Windows editions and other operating systems such as macOS and Linux), and an estimated 16% ...
For requests of 256 bytes or above but below the mmap threshold, dlmalloc since v2.8.0 use an in-place bitwise trie algorithm ("treebin"). If there is no free space left to satisfy the request, dlmalloc tries to increase the size of the heap, usually via the brk system call. This feature was introduced way after ptmalloc was created (from v2.7 ...
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