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Function std.math.exponential.ldexp

Compute n * 2exp

real ldexp (
  real n,
  int exp
) pure nothrow @nogc @safe;

double ldexp (
  double n,
  int exp
) pure nothrow @nogc @safe;

float ldexp (
  float n,
  int exp
) pure nothrow @nogc @safe;




import std.meta : AliasSeq;
static foreach (T; AliasSeq!(float, double, real))
    T r;

    r = ldexp(3.0L, 3);
    writeln(r); // 24

    r = ldexp(cast(T) 3.0, cast(int) 3);
    writeln(r); // 24

    T n = 3.0;
    int exp = 3;
    r = ldexp(n, exp);
    writeln(r); // 24


Walter Bright, Don Clugston, Conversion of CEPHES math library to D by Iain Buclaw and David Nadlinger


Boost License 1.0.