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Example of multipart/form-data
...6 is two hyphens shorter then the actual boundaries in the data. This is really, really hard to see with all the hyphens strung together.
– Fake Name
Jun 2 '17 at 6:39
...
How do I safely pass objects, especially STL objects, to and from a DLL?
...mory so their addresses correspond to a multiple of the type's size. For example, an int might be aligned to a 4-byte boundary.
If your DLL is compiled with a different compiler than your EXE, the DLL's version of a given class might have different packing than the EXE's version, so when the EXE pa...
Checking if a string can be converted to float in Python
...False
print(isfloat("12.34.56")) False Two dots not allowed.
print(isfloat("#56")) False
print(isfloat("56%")) False
print(isfloat("0E0")) True
print(isfloat("x86E0")) False
print(isfloat("86-5")) ...
Makefile, header dependencies
...vided by the gnu preprocessor are a bit confusing. However, the removal of all directories from the build target with -MM is documented and not a bug [gpp]:
By default CPP takes the name of the main input file, deletes any
directory components and any file suffix such as ‘.c’, and appends ...
OOP vs Functional Programming vs Procedural [closed]
..., but I really can't see the big difference between it and procedural C or PHP, could you give some example?
– Leonel
Apr 1 '12 at 2:39
...
How do I make a UITableViewCell appear disabled?
...st set the alpha of the cell. Put some condition as your own requirements & set the alpha.
cell.alpha=0.2;
If it does't work,the way you like it to be then, Use second trick,
Just take an image of the cell size having gray background with Transparent Background, just add that image in image...
Python != operation vs “is not”
...
@MatrixFrog: In PHP or JavaScript we would say that is is like === (very equal), and conversely is not is like !== (not exactly equal).
– Orwellophile
Apr 2 '17 at 1:43
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How does this print “hello world”?
...ted ANDing the number with the mask 31₁₀ = 11111₂ in the sentence l & 31
Now the code maps the 5-bit value to its corresponding 7-bit ascii character. This is the tricky part, check the binary representations for the lowercase
alphabet letters in the following table:
ascii | asci...
Assignment inside lambda expression in Python
I have a list of objects and I want to remove all objects that are empty except for one, using filter and a lambda expression.
...
How do I merge two dictionaries in a single expression in Python (taking union of dictionaries)?
... keys and values
z.update(y) # modifies z with y's keys and values & returns None
return z
and now:
z = merge_two_dicts(x, y)
In Python 3.9.0a4 or greater (final release date approx October 2020): PEP-584, discussed here, was implemented to further simplify this:
z = x | y ...