Compiler Warning (level 1, Error) C4235

nonstandard extension used: 'keyword' keyword not supported on this architecture

Remarks

The compiler doesn't support the keyword you used on the architecture your build is targeting. For example, the __asm keyword is not supported in x64 builds.

This warning is always issued as an error. Use the warning pragma to disable.

Example

The following example generates C4235 as the Inline Assembler is only supported on x86:

// C4235.cpp
// processor: x64 (set compiler environment with vcvars64.bat)

int main()
{
    __asm nop   // C4235
}