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view tests/mini/vararg4.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 vararg4; import tango.core.Vararg; extern(C) int printf(char*, ...); void vafunc(...) { foreach(i,v; _arguments) { if (typeid(byte) == v) { printf("byte(%d)\n", va_arg!(byte)(_argptr)); } else if (typeid(short) == v) { printf("short(%d)\n", va_arg!(short)(_argptr)); } else if (typeid(int) == v) { printf("int(%d)\n", va_arg!(int)(_argptr)); } else if (typeid(long) == v) { printf("long(%ld)\n", va_arg!(long)(_argptr)); } else if (typeid(float) == v) { printf("float(%f)\n", va_arg!(float)(_argptr)); } else if (typeid(double) == v) { printf("double(%f)\n", va_arg!(double)(_argptr)); } else if (typeid(real) == v) { printf("real(%f)\n", va_arg!(real)(_argptr)); } else assert(0, "unsupported type"); } } void main() { vafunc(byte.max,short.max,1,2,3,4L,5.0f,6.0,cast(real)7); }