Mercurial > projects > ldc
view runtime/internal/qsort2.d @ 1418:f5f8c21ce6ef
Make "`aa[key]`" use the same runtime call as "`key in aa`". The runtime calls
these were using were different, but with equivalent definitions.
With `ldc -O3`, the following functions now all compile to the exact same code:
{{{
int[int] y;
void foo(int x) {
if (x in y) {
auto z = x in y;
sink(*z);
}
}
void bar(int x) {
if (x in y) {
sink(y[x]);
}
}
void baz(int x) {
if (auto p = x in y) {
sink(*p);
}
}
}}}
author | Frits van Bommel <fvbommel wxs.nl> |
---|---|
date | Mon, 25 May 2009 12:50:40 +0200 |
parents | 30b42a283c8e |
children |
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/* * Placed into Public Domain * written by Walter Bright * www.digitalmars.com * * This is a public domain version of qsort.d. * All it does is call C's qsort(), but runs a little slower since * it needs to synchronize a global variable. */ /* * Modified by Sean Kelly <sean@f4.ca> for use with Tango. */ //debug=qsort; private import tango.stdc.stdlib; private TypeInfo tiglobal; extern (C) int cmp(void* p1, void* p2) { return tiglobal.compare(p1, p2); } extern (C) void[] _adSort(void[] a, TypeInfo ti) { synchronized { tiglobal = ti; tango.stdc.stdlib.qsort(a.ptr, a.length, cast(size_t)ti.tsize(), &cmp); } return a; } unittest { debug(qsort) printf("array.sort.unittest()\n"); int a[] = new int[10]; a[0] = 23; a[1] = 1; a[2] = 64; a[3] = 5; a[4] = 6; a[5] = 5; a[6] = 17; a[7] = 3; a[8] = 0; a[9] = -1; a.sort; for (int i = 0; i < a.length - 1; i++) { //printf("i = %d", i); //printf(" %d %d\n", a[i], a[i + 1]); assert(a[i] <= a[i + 1]); } }