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How do I put two increment statements in a C++ 'for' loop?
...valuates both operands, and returns the second operand. Thus:
for(int i = 0; i != 5; ++i,++j)
do_something(i,j);
But is it really a comma operator?
Now having wrote that, a commenter suggested it was actually some special syntactic sugar in the for statement, and not a comma operator at all...
Python 3: UnboundLocalError: local variable referenced before assignment [duplicate]
... rather than relying on Globals
def function(Var1, Var2):
if Var2 == 0 and Var1 > 0:
print("Result One")
elif Var2 == 1 and Var1 > 0:
print("Result Two")
elif Var1 < 1:
print("Result Three")
return Var1 - 1
function(1, 1)
...
How do I add more members to my ENUM-type column in MySQL?
...
140
ALTER TABLE
`table_name`
MODIFY COLUMN
`column_name2` enum(
'existing_value1',
...
How do I properly compare strings in C?
...ngs using != or ==, you need to use strcmp:
while (strcmp(check,input) != 0)
The reason for this is because != and == will only compare the base addresses of those strings. Not the contents of the strings themselves.
shar...
How do you read CSS rule values with JavaScript?
...(className) {
var cssText = "";
var classes = document.styleSheets[0].rules || document.styleSheets[0].cssRules;
for (var x = 0; x < classes.length; x++) {
if (classes[x].selectorText == className) {
cssText += classes[x].cssText || classes[x].style.cssText...
How can sbt pull dependency artifacts from git?
...
answered Sep 26 '11 at 3:40
Kipton BarrosKipton Barros
19.7k33 gold badges6161 silver badges7575 bronze badges
...
How to calculate a mod b in Python?
...
answered Jun 13 '09 at 16:59
eduffyeduffy
34.1k99 gold badges9090 silver badges8989 bronze badges
...
How to modify a global variable within a function in bash?
...
var="$(myfunc)"
echo "$var"
Gives:
Hello
For a numerical value from 0-255, you can use return to pass the number as the exit status:
mysecondfunc() {
echo "Hello"
return 4
}
var="$(mysecondfunc)"
num_var=$?
echo "$var - num is $num_var"
Gives:
Hello - num is 4
...
PHP server on local machine?
...
answered Nov 5 '09 at 2:52
LukmanLukman
16.4k55 gold badges4949 silver badges6060 bronze badges
...
How to get Scala List from Java List?
...
EDIT: Note that this is deprecated since 2.12.0. Use JavaConverters instead. (comment by @Yaroslav)
Since Scala 2.8 this conversion is now built into the language using:
import scala.collection.JavaConversions._
...
lst.toList.foreach{ node => .... }
works. asSca...