Mercurial > projects > ldc
view tests/mini/arrays8.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
module arrays8; extern(C) int printf(char*, ...); void main() { char[] a = "hello "; printf(" \"%s\".length = %u\n", a.ptr, a.length); char[] b = "world"; printf(" \"%s\".length = %u\n", b.ptr, b.length); char[] c = a ~ b; printf("After 'a ~ b':\n"); printf(" \"%.*s\".length = %u\n", a.length, a.ptr, a.length); printf(" \"%.*s\".length = %u\n", b.length, b.ptr, b.length); printf(" \"%.*s\".length = %u\n", c.length, c.ptr, c.length); assert(c.length == a.length + b.length); assert(c !is a); assert(c !is b); }