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https://github.com/D-Programming-Language/phobos/pull/23

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This commit is contained in:
Andrei Alexandrescu 2011-05-01 12:11:46 -05:00
parent 1acd1b5dbc
commit d061f13d34
12 changed files with 34 additions and 190 deletions
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12
std/numeric.d
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@ -37,9 +37,9 @@ import std.range;
import std.c.stdlib;
import std.functional;
import std.typetuple;
import std.intrinsic;
import std.complex;
import core.bitop;
import core.memory;
import core.exception;
@ -95,8 +95,8 @@ public enum CustomFloatFlags {
none = 0
}
// 64-bit version of std.intrinsic.bsr
private int bsr(ulong value) {
// 64-bit version of core.bitop.bsr
private int bsr64(ulong value) {
union Ulong {
ulong raw;
struct {
@ -106,7 +106,7 @@ private int bsr(ulong value) {
}
Ulong v;
v.raw = value;
return v.high==0 ? std.intrinsic.bsr(v.low) : std.intrinsic.bsr(v.high) + 32;
return v.high==0 ? core.bitop.bsr(v.low) : core.bitop.bsr(v.high) + 32;
}
/**
@ -237,7 +237,7 @@ struct CustomFloat(
// Convert denormalized form to normalized form
((flags&Flags.allowDenorm)&&(exp==0)) ){
if(sig > 0) {
auto shift2 = precision - bsr(sig);
auto shift2 = precision - bsr64(sig);
exp -= shift2-1;
shift += shift2;
} else { // value = 0.0
@ -2624,8 +2624,6 @@ void slowFourier4(Ret, R)(R range, Ret buf) {
}
bool isPowerOfTwo(size_t num) {
// BUGS: std.intrinsic takes a uint, not a size_t. Therefore, this
// won't work on 64-bit unless std.intrinsic is fixed.
return bsr(num) == bsf(num);
}