gcc/g++ inline asm syntax produces an "expected a ')'" warning

[paul-reilly]

Issue Type: Bug

auto getChar() 
  -> uint8_t
{
    uint8_t res = 0;
    uint8_t var = 65;
    asm(R"(
        mov al, %[var]
        mov %[res], al
    )"
    : [res] "+g" (res)  // <- warning produced at this ':'
    : [var] "g" (var)  
    : "eax" );

    return res;
}

Extension version: 0.26.2
VS Code version: Code 1.41.1 (26076a4de974ead31f97692a0d32f90d735645c0, 2019-12-18T14:58:56.166Z)
OS version: Windows_NT x64 10.0.19041

System Info

Item	Value
CPUs	AMD Ryzen 5 2500U with Radeon Vega Mobile Gfx (8 x 1996)
GPU Status	2d_canvas: enabled flash_3d: enabled flash_stage3d: enabled flash_stage3d_baseline: enabled gpu_compositing: enabled metal: disabled_off multiple_raster_threads: enabled_on oop_rasterization: disabled_off protected_video_decode: unavailable_off rasterization: enabled skia_renderer: disabled_off surface_control: disabled_off surface_synchronization: enabled_on video_decode: enabled viz_display_compositor: enabled_on viz_hit_test_surface_layer: disabled_off webgl: enabled webgl2: enabled
Load (avg)	undefined
Memory (System)	6.94GB (2.20GB free)
Process Argv
Screen Reader	no
VM	0%

[sean-mcmanus]

The code doesn't compile with cl.exe/msvc mode (which is what it appears to be using). If you intend the code to compile with gcc/clang, can you change your compilerPath/intelliSenseMode? You can run the VS Code command "C/C++: Log Diagnostics" see what compiler settings are being used for the current file.

[paul-reilly]

Good point, thanks. Changing the C_Cpp.default.compilerPath to gcc works.

Really sorry about exposing you to that brain fart!

<makes slow retreat in reverse, bowing continuously as he departs>