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Undefined reference to static constexpr char[]
I want to have a static const char array in my class. GCC complained and told me I should use constexpr , although now it's telling me it's an undefined reference. If I make the array a non-member then it compiles. What is going on?
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What is the proper declaration of main?
...conventionally named argc and argv, respectively. argv is a pointer to an array of C strings representing the arguments to the program. argc is the number of arguments in the argv array.
Usually, argv[0] contains the name of the program, but this is not always the case. argv[argc] is guaranteed...
How can I save an image with PIL?
... suggestion (with other minor modifications, like using fftshift and numpy.array instead of numpy.asarray) for doing the conversion for proper visualization:
import sys
import numpy
from PIL import Image
img = Image.open(sys.argv[1]).convert('L')
im = numpy.array(img)
fft_mag = numpy.abs(numpy.fft...
How to get parameters from a URL string?
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All the parameters after ? can be accessed using $_GET array. So,
echo $_GET['email'];
will extract the emails from urls.
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Javascript Split string on UpperCase Characters
How do you split a string into an array in Javascript by UpperCase character?
4 Answers
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What are all the common undefined behaviours that a C++ programmer should know about? [closed]
... that yields a result outside the boundaries (either above or below) of an array.
Dereferencing the pointer at a location beyond the end of an array.
Converting pointers to objects of incompatible types
Using memcpy to copy overlapping buffers.
Buffer overflows
Reading or writing to an object or a...
best way to add license section to iOS settings bundle
...string>
<key>PreferenceSpecifiers</key>
<array>
EOD
for my $i (sort glob("*.license"))
{
my $value=`cat $i`;
$value =~ s/\r//g;
$value =~ s/\n/\r/g;
$value =~ s/[ \t]+\r/\r/g;
$value =~ s/\"/\'/g;
my $key=$i;
$key =~ s/\.license$//;
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WebKit issues with event.layerX and event.layerY
...t should be valued in this case. If we want both, why not just replace the array with the values that lack layerX/layerY? Check out the perf bench (which doesn't matter anyway).
– mekwall
Jul 19 '12 at 17:52
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how to get the one entry from hashmap without iterating
...entrySet().iterator().next();
Another solution (not pretty):
return new ArrayList(hashMapObject.entrySet()).get(0);
Or yet (not better):
return hashMapObject.entrySet().toArray()[0];
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When should I really use noexcept?
...can compiler recognize that the code can throw exception? Is and access to array considered as possible exception?
– Tomas Kubes
Apr 20 '15 at 16:56
3
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