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const char * const versus const char *?
...
Well you're fooling yourself because C types are read from the inside out, not from the left to right. :-)
– R.. GitHub STOP HELPING ICE
Feb 9 '11 at 20:54
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@Autowired and static method
...ctor execution. Sample:
@Component
public class Boo {
private static Foo foo;
@Autowired
public Boo(Foo foo) {
Boo.foo = foo;
}
public static void randomMethod() {
foo.doStuff();
}
}
Using @PostConstruct to hand value over to static field
The idea here...
How to automatically generate a stacktrace when my program crashes
...e_symbols_fd(array, size, STDERR_FILENO);
exit(1);
}
void baz() {
int *foo = (int*)-1; // make a bad pointer
printf("%d\n", *foo); // causes segfault
}
void bar() { baz(); }
void foo() { bar(); }
int main(int argc, char **argv) {
signal(SIGSEGV, handler); // install our handler
...
Bash if [ false ] ; returns true
...they're interpreted as strings, you'll run into issues. In your case:
if [ foo ]; then ... # "if the string 'foo' is non-empty, return true"
if foo; then ... # "if the command foo succeeds, return true"
So:
if [ true ] ; then echo "This text will always appear." ; fi;
if [ false ] ; then echo ...
Using unset vs. setting a variable to empty
... parameter expansion can also distinguish between unset and null values: ${foo:bar} expands to "bar" when foo is unset, but "" when foo is null, while ${foo:-bar} expands to "bar" if foo is unset or null.
– chepner
Sep 4 '12 at 14:28
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Difference between := and = operators in Go
...laration + assignment, whereas = is for assignment only.
For example, var foo int = 10 is the same as foo := 10.
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What does 'foo' really mean?
...ming question, as in any programming tutorial, you eventually come across 'foo' in the code examples. (yeah, right?)
9 Answ...
Select by partial string from a pandas DataFrame
...ost is long.
Basic Substring Search
# setup
df1 = pd.DataFrame({'col': ['foo', 'foobar', 'bar', 'baz']})
df1
col
0 foo
1 foobar
2 bar
3 baz
str.contains can be used to perform either substring searches or regex based search. The search defaults to regex-based unless you explic...
Dynamically access object property using variable
... variable, you have to use bracket notation:
var something = {
bar: 'foo'
};
var foo = 'bar';
// both x = something[foo] and something[foo] = x work as expected
console.log(something[foo]);
console.log(something.bar)
...
What is the difference between class and instance attributes?
... can be multiple objects referred to. For instance
>>> class A: foo = []
>>> a, b = A(), A()
>>> a.foo.append(5)
>>> b.foo
[5]
>>> class A:
... def __init__(self): self.foo = []
>>> a, b = A(), A()
>>> a.foo.append(5)
>>> b.f...