    pub const C89 = 0x0001;
    pub const C = 0x0002;
    pub const Ada83 = 0x0003;
    pub const C_plus_plus = 0x0004;
    pub const Cobol74 = 0x0005;
    pub const Cobol85 = 0x0006;
    pub const Fortran77 = 0x0007;
    pub const Fortran90 = 0x0008;
    pub const Pascal83 = 0x0009;
    pub const Modula2 = 0x000a;
    pub const Java = 0x000b;
    pub const C99 = 0x000c;
    pub const Ada95 = 0x000d;
    pub const Fortran95 = 0x000e;
    pub const PLI = 0x000f;
    pub const ObjC = 0x0010;
    pub const ObjC_plus_plus = 0x0011;
    pub const UPC = 0x0012;
    pub const D = 0x0013;
    pub const Python = 0x0014;
    pub const OpenCL = 0x0015;
    pub const Go = 0x0016;
    pub const Modula3 = 0x0017;
    pub const Haskell = 0x0018;
    pub const C_plus_plus_03 = 0x0019;
    pub const C_plus_plus_11 = 0x001a;
    pub const OCaml = 0x001b;
    pub const Rust = 0x001c;
    pub const C11 = 0x001d;
    pub const Swift = 0x001e;
    pub const Julia = 0x001f;
    pub const Dylan = 0x0020;
    pub const C_plus_plus_14 = 0x0021;
    pub const Fortran03 = 0x0022;
    pub const Fortran08 = 0x0023;
    pub const RenderScript = 0x0024;
    pub const BLISS = 0x0025;

    pub const lo_user = 0x8000;
    pub const hi_user = 0xffff;

    pub const Mips_Assembler = 0x8001;
    pub const Upc = 0x8765;
    pub const HP_Bliss = 0x8003;
    pub const HP_Basic91 = 0x8004;
    pub const HP_Pascal91 = 0x8005;
    pub const HP_IMacro = 0x8006;
    pub const HP_Assembler = 0x8007;