openlb_msvc_compat.h File Reference

Minimal MSVC compatibility shims for OpenLB headers. More...

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Detailed Description

Minimal MSVC compatibility shims for OpenLB headers.

OpenLB uses POSIX/GCC built-ins and POSIX macros that are not available when compiling with the Microsoft Visual C++ compiler. This header provides the minimal set of definitions required to include OpenLB headers under MSVC without modifying the OpenLB source tree.

Include this header before any OpenLB header (e.g., before #include <olb.h>) when targeting MSVC.

Note

On non-MSVC compilers (GCC, Clang, AppleClang) this header expands to nothing; it is safe to include unconditionally.

Warning

Native MSVC + OpenLB builds are not fully supported upstream. OpenLB 1.6 and later still reference POSIX-only headers such as <unistd.h> that cannot be shimmed here. Linux/WSL remains the recommended build environment for OpenLB-coupled targets.