digitalmars.D.learn - key in aa.keys, but aa[key] give range violation?
- Yuxuan Shui (10/10) Mar 29 2016 My code looks something like this:
- Yuxuan Shui (3/13) Mar 29 2016 I guess I'm not supposed to do aa.remove() while iterate through
- =?UTF-8?Q?Ali_=c3=87ehreli?= (7/21) Mar 29 2016 That was my first guess. No, you cannot mutate the container itself
My code looks something like this: bool[ulong][ulong] edge; foreach(u; from) foreach(v; to_) edge[u][v] = true; foreach(u; edge.keys) { auto adj = edge[u]; //.... } And sometimes edge[u] would give Range violation error.
Mar 29 2016
On Wednesday, 30 March 2016 at 00:26:49 UTC, Yuxuan Shui wrote:My code looks something like this: bool[ulong][ulong] edge; foreach(u; from) foreach(v; to_) edge[u][v] = true; foreach(u; edge.keys) { auto adj = edge[u]; //.... } And sometimes edge[u] would give Range violation error.I guess I'm not supposed to do aa.remove() while iterate through it?
Mar 29 2016
On 03/29/2016 05:29 PM, Yuxuan Shui wrote:On Wednesday, 30 March 2016 at 00:26:49 UTC, Yuxuan Shui wrote:That was my first guess. No, you cannot mutate the container itself while iterating over it. However, the sample that you've shown should be fine as edge.keys is an eagerly generated array of keys. In that case, you can remove from the aa. Perhaps your actual code is different? AliMy code looks something like this: bool[ulong][ulong] edge; foreach(u; from) foreach(v; to_) edge[u][v] = true; foreach(u; edge.keys) { auto adj = edge[u]; //.... } And sometimes edge[u] would give Range violation error.I guess I'm not supposed to do aa.remove() while iterate through it?
Mar 29 2016