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view tests/mini/dgs.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 | 1bb99290e03a |
children |
line wrap: on
line source
extern(C) int printf(char*, ...); struct S { int i; int square() { return i*i; } int plus(int a) { return i + a; } int minus(int a) { return i - a; } int delegate(int) get(char op) { int delegate(int) rval; if (op == '+') rval = + else if (op == '-') rval = − return rval; } } int calldg1(int delegate(int) dg, int i) { return dg(i); } void delegate() retdg() { void delegate() dg; return dg; } void getretdg() { void delegate() dg; dg = retdg(); } class C { int i; void m() { i = 42; } } void getclassdg() { scope c = new C; void delegate() dg = &c.m; assert(c.i != 42); dg(); assert(c.i == 42); } void main() { printf("Delegate test\n"); S s = S(4); auto dg = &s.square; //assert(dg() == 16); //dg(); /*auto dg1 = &s.plus; assert(dg1(6) == 10); auto dg2 = &s.minus; assert(calldg1(dg2,30) == -26); auto dg3 = s.get('+'); assert(dg3(16) == 20); getretdg(); getclassdg();*/ printf(" SUCCESS\n"); }