view tests/mini/intrinsics.d @ 1275:bedf0bfb8fdb

Implement first D-specific optimization pass: -simplify-drtcalls. It uses the machinery of the standard -simplify-libcalls pass, but optimizes calls to the D runtime instead of calls to C libraries. At the moment, these optimizations are implemented by this pass: - Avoid the runtime call for `arr.length = newlen` if it can determine that the new length isn't longer than the old one. - Ditto for `cast(T[]) arr` if it will clearly always succeed. (e.g. if the length of the original array is zero, or if the old element size is a multiple of the new element size)
author Frits van Bommel <fvbommel wxs.nl>
date Tue, 28 Apr 2009 21:58:06 +0200
parents 146d8dfa0043
children
line wrap: on
line source

import ldc.intrinsics;

extern(C) int printf(char*,...);
extern(C) int scanf(char*,...);

void main()
{
    float f;
    printf("Enter float: ");
    //scanf("%f", &f);
    f = 1.22345;
    float sf = llvm_sqrt(f);
    printf("sqrt(%f) = %f\n", f, sf);

    double d;
    printf("Enter double: ");
    //scanf("%lf", &d);
    d = 2.2311167895435245;
    double sd = llvm_sqrt(d);
    printf("sqrt(%lf) = %lf\n", d, sd);

    real r;
    printf("Enter real: ");
    //scanf("%llf", &r);
    r = 3.2311167891231231234754764576;
    real sr = llvm_sqrt(r);
    printf("sqrt(%Lf) = %Lf\n", r, sr);
}