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c++webassembly

Is it possible to detect WASM compiler in code via compiler directives?

Is there a standard #define I can detect within my own C++ code that would indicate if WASM is compiling the code?

In C++ on Android I can use #ifdef __ANDROID__ but I'm not sure for Web Assembly ? I'm actually using emcc compiler so maybe there's a standard #define for EMCC compiler...

Thanks

Solution

  • You can use __wasm__ to detect the Wasm architecture in general or __wasm32__/__wasm64__ to be more precise. Or you can use __EMSCRIPTEN__ to specifically detect the emscripten target.