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Enum member std.traits.isNumeric

Detect whether T is a built-in numeric type (integral or floating point).

enum isNumeric(T) = false;


static assert(
    isNumeric!byte &&
    isNumeric!short &&
    isNumeric!int &&
    isNumeric!long &&
    isNumeric!float &&
    isNumeric!double &&
    isNumeric!real &&
    isNumeric!(const(real)) &&

static assert(
    !isNumeric!void &&
    !isNumeric!bool &&
    !isNumeric!char &&
    !isNumeric!wchar &&

// types which act as numeric values do not pass
struct S
    int val;
    alias val this;

static assert(!isNumeric!S);


Walter Bright, Tomasz Stachowiak (isExpressions), Andrei Alexandrescu, Shin Fujishiro, Robert Clipsham, David Nadlinger, Kenji Hara, Shoichi Kato


Boost License 1.0.