On Monday, 12 December 2022 at 17:23:36 UTC, lili wrote:
```
int[string] aa = ["ok":1, "aaa":2, "ccc":3, "ddd":4];
foreach (k ; aa.byKey)
{
if (k == "aaa") {
aa.remove(k);
aa["ww"] = 33;
}
if (k ==
On 12/13/22 6:22 AM, Per Nordlöw wrote:
On Monday, 12 December 2022 at 17:29:00 UTC, Steven Schveighoffer wrote:
Removing keys while iterating is not supported. It will break, in
confusing ways, and possibly include a null pointer dereference.
IRC, the specs says that it's an error to modify
On Monday, 12 December 2022 at 17:29:00 UTC, Steven Schveighoffer
wrote:
Removing keys while iterating is not supported. It will break,
in confusing ways, and possibly include a null pointer
dereference.
IRC, the specs says that it's an error to modify a foreach
aggregate but the compiler
On Tuesday, 13 December 2022 at 11:22:35 UTC, Per Nordlöw wrote:
IRC, the specs says that it's an error to modify a foreach
aggregate but the compiler curretly doesn't diagnose it.
I believe it should.
On 12/12/22 8:45 PM, Steven Schveighoffer wrote:
for(auto r = aa.byKey, auto k = r.front; !r.empty; r.popFront)
err... forgot the continual front assignment
I think it's more like:
for(auto r = aa.byKey; !r.empty; r.popFront) {
auto k = r.front;
// foreach body
}
-Steve
On 12/12/22 7:54 PM, lili wrote:
is foreach Syntactic sugar?, like for-range in C++, if it is, compiler
how implement
Yes it is syntax sugar. The lowering depends on what the item you're
iterating is.
For an associative array `byKey`, it is converting the AA into a range
of keys, and
is foreach Syntactic sugar?, like for-range in C++, if it is,
compiler how implement
On 12/12/22 12:23 PM, lili wrote:
```
int[string] aa = ["ok":1, "aaa":2, "ccc":3, "ddd":4];
foreach (k ; aa.byKey)
{
if (k == "aaa") {
aa.remove(k);
aa["ww"] = 33;
}
if (k == "ww") {
aa.remove(k);
aa["vv"] = 33;
}
```
int[string] aa = ["ok":1, "aaa":2, "ccc":3, "ddd":4];
foreach (k ; aa.byKey)
{
if (k == "aaa") {
aa.remove(k);
aa["ww"] = 33;
}
if (k == "ww") {
aa.remove(k);
