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HTML encoding issues - “” character showing up instead of “ ”
... legacy app just starting to misbehave, for whatever reason I'm not sure. It generates a bunch of HTML that gets turned into PDF reports by ActivePDF.
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What's the point of malloc(0)?
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According to the specifications, malloc(0) will return either "a null pointer or a unique pointer that can be successfully passed to free()".
This basically lets you allocate nothing, but still pass the "artist" variable to a call to free() without worry. For practical purposes,...
Polymorphism in C++
...m
To understand polymorphism - as the term is used in Computing Science - it helps to start from a simple test for and definition of it. Consider:
Type1 x;
Type2 y;
f(x);
f(y);
Here, f() is to perform some operation and is being given values x and y as inputs.
To exhibit po...
Wait until all jQuery Ajax requests are done?
How do I make a function wait until all jQuery Ajax requests are done inside another function?
20 Answers
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Java Class.cast() vs. cast operator
...lt;T> T doSomething() {
Object o;
// snip
return (T) o;
}
It's often best to replace it by:
<T> T doSomething(Class<T> cls) {
Object o;
// snip
return cls.cast(o);
}
That's the only use case for Class.cast(Object) I've ever come across.
Regarding compiler...
std::string to char*
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It won't automatically convert (thank god). You'll have to use the method c_str() to get the C string version.
std::string str = "string";
const char *cstr = str.c_str();
Note that it returns a const char *; you aren't all...
How do I pass a string into subprocess.Popen (using the stdin argument)?
...nd data to
the process’s stdin, you need to
create the Popen object with
stdin=PIPE. Similarly, to get anything
other than None in the result tuple,
you need to give stdout=PIPE and/or
stderr=PIPE too.
Replacing os.popen*
pipe = os.popen(cmd, 'w', bufsize)
# ==>
p...
Set size on background image with CSS?
Is it possible to set the size of the background image with CSS?
18 Answers
18
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Numpy - add row to array
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What is X? If it is a 2D-array, how can you then compare its row to a number: i < 3?
EDIT after OP's comment:
A = array([[0, 1, 2], [0, 2, 0]])
X = array([[0, 1, 2], [1, 2, 0], [2, 1, 2], [3, 2, 0]])
add to A all rows from X where t...
Is there any algorithm in c# to singularize - pluralize a word?
Is there any algorithm in c# to singularize - pluralize a word (in english) or does exist a .net library to do this (may be also in different languages)?
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