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“:” (colon) in C struct - what does it mean? [duplicate]
...d uses. Here is a quote from MSDN describing bit fields:
The constant-expression specifies the width of the field in bits. The
type-specifier for the declarator must be unsigned int, signed int, or
int, and the constant-expression must be a nonnegative integer value.
If the value is zero, ...
What is the argument for printf that formats a long?
...
printf("%ld", ULONG_MAX) outputs the value as -1. Should be printf("%lu", ULONG_MAX) for unsigned long as described by @Blorgbeard below.
– jammus
Nov 12 '11 at 16:03
...
Unzipping files in Python
...pfile
with zipfile.ZipFile(path_to_zip_file, 'r') as zip_ref:
zip_ref.extractall(directory_to_extract_to)
That's pretty much it!
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Where do “pure virtual function call” crashes come from?
...base class version, which in the case of a pure virtual function, doesn't exist.
(See live demo here)
class Base
{
public:
Base() { doIt(); } // DON'T DO THIS
virtual void doIt() = 0;
};
void Base::doIt()
{
std::cout<<"Is it fine to call pure virtual function from constructor?...
What does the Subversion status symbol “~” mean?
...are right. It is a directory now without a .svn file. Any idea on how to fix that? Do I need to delete it from subversion and add it again?
– jergason
May 12 '09 at 15:47
...
How to convert a char to a String?
...efficient
// #2
String stringValueOfCharArray = String.valueOf(new char[]{x});
// #3
String characterToString = Character.toString('c');
// #4
String characterObjectToString = new Character('c').toString();
// #5
// Although this method seems very simple,
// this is less efficient because...
How to delete last item in list?
...e question correctly, you can use the slicing notation to keep everything except the last item:
record = record[:-1]
But a better way is to delete the item directly:
del record[-1]
Note 1: Note that using record = record[:-1] does not really remove the last element, but assign the sublist to r...
How to clear gradle cache?
...adle cache locates at
On Windows: %USER_HOME%\.gradle/caches/
On Mac/Unix: ~/.gradle/caches/
You can browse to these directory and manually delete it or run
rm -rf $HOME/.gradle/caches/
on Unix system. Run this command will also force to download dependencies.
Update 2: Clear the Android b...
Installing rmagick on Ubuntu
...wered Aug 29 '13 at 3:33
Daniel X MooreDaniel X Moore
13k1212 gold badges7474 silver badges8686 bronze badges
...
Using switch statement with a range of value in each case?
...rite a switch statement where each case contains more than one value? For example (though clearly the following code won't work):
...