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What happens if you call erase() on a map element while iterating from begin to end?
... port_map.erase(pm_it);
}
else
{
++pm_it;
}
}
C++03
Erasing elements in a map does not invalidate any iterators.
(apart from iterators on the element that was deleted)
Actually inserting or deleting does not invalidate any of the iterators:
Also see this answer:
Mark Ran...
Python - abs vs fabs
...pe of its argument.
In [7]: type(abs(-2))
Out[7]: int
In [8]: type(abs(-2.0))
Out[8]: float
In [9]: type(abs(3+4j))
Out[9]: float
In [10]: type(math.fabs(-2))
Out[10]: float
In [11]: type(math.fabs(-2.0))
Out[11]: float
In [12]: type(math.fabs(3+4j))
--------------------------------------------...
Why is MySQL's default collation latin1_swedish_ci?
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109
The bloke who wrote it was co-head of a Swedish company.
Possibly for similar reasons, Microso...
How to add a 'or' condition in #ifdef
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answered Jun 8 '10 at 15:39
jalfjalf
223k4545 gold badges319319 silver badges536536 bronze badges
...
Assign output to variable in Bash
...erring to the variable.
#!/bin/bash
IP=$(curl automation.whatismyip.com/n09230945.asp)
echo "$IP"
sed "s/IP/$IP/" nsupdate.txt | nsupdate
share
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improve this answer
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f...
windows batch SET inside IF not working
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edited May 29 '18 at 10:08
JRA_TLL
77455 silver badges1919 bronze badges
answered Feb 1 '12 at 20:12...
How can I convert a hex string to a byte array? [duplicate]
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502
Here's a nice fun LINQ example.
public static byte[] StringToByteArray(string hex) {
retur...
How to break out or exit a method in Java?
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edited Jun 20 at 9:12
Community♦
111 silver badge
answered Oct 29 '11 at 4:41
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Creating an empty file in Ruby: “touch” equivalent?
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edited Mar 27 '13 at 23:04
answered Nov 11 '11 at 22:14
D...
PostgreSQL query to return results as a comma separated list
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209
SELECT string_agg(id::text, ',') FROM table
Requires PostgreSQL 9.0 but that's not a problem.
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