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Remove all but numbers from NSString
... 3.0 SDK.
If I define strippedString as you show here, I get a BAD ACCESS error when trying to print it after the scanCharactersFromSet:intoString call.
If I do it like so:
NSMutableString *strippedString = [NSMutableString stringWithCapacity:10];
I end up with an empty string, but the code doe...
How to use DISTINCT and ORDER BY in same SELECT statement?
... Event you can write [Event] instead of Event to stop SQL throwing a parse error.
– Ben Maxfield
Oct 24 '16 at 21:26
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maximum value of int
...s> and int imax = std::numeric_limits<int>::max();, but I get the error Can't resolve struct member 'max'. Any ideas as to why this occurs, and how to fix it? I am using CLion IDE, with CMake and C++ 11 on Ubuntu 14.04. I think it is linked to this issue
– modulitos
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How to use clock() in C++
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This will accumulate relative error in the time because you don't include the time it takes to print, and usleep won't always return after exactly the amount you ask for. Sometimes it will be longer. You should check the current time at the start, then ...
Set selected index of an Android RadioGroup
...oup>
In this case using an index of 1, for example, would generate an error. The item at index 1 is the first separator line -- not a radioButton. The radioButtons in this example are at indexes 0, 2, 4, 6.
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Asynchronous shell exec in PHP
...t, using /dev/null is the better practice, as writing to closed FDs causes errors, whereas attempts to read or write to /dev/null simply silently do nothing.
– Charles Duffy
Oct 22 '13 at 14:49
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How to write to file in Ruby?
...ile = File.open("/tmp/some_file", "w")
file.write("your text")
rescue IOError => e
#some error occur, dir not writable etc.
ensure
file.close unless file.nil?
end
You can find it in documentation:
static VALUE rb_io_s_open(int argc, VALUE *argv, VALUE klass)
{
VALUE io = rb_class_ne...
Best way to alphanumeric check in JavaScript
...character ranges manually:
if (!input_string.match(/^[0-9a-z]+$/))
show_error_or_something()
Here ^ means beginning of string and $ means end of string, and [0-9a-z]+ means one or more of character from 0 to 9 OR from a to z.
More information on Javascript regexen here:
https://developer.mozil...
How can a Java variable be different from itself?
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Or lead into a compile error, if a is declared as String a = "Nope"; That why I asked for the type of 'a'
– Christian Kuetbach
Dec 4 '13 at 12:16
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When to use Tornado, when to use Twisted / Cyclone / GEvent / other [closed]
...iew any other frameworks are welcomed!
Source: http://dhilipsiva.com/2013/05/19/python-libraries-django-twisted-tornado-flask-cyclone-and-pyramid.html
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