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How to modify a global variable within a function in bash?
...ar="$(myfunc)"
echo "$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
...
Difference between Covariance & Contra-variance
...s NOT both.
– bjan
Jul 29 '15 at 12:22
3
@Bargitta: It is very similar. The difference is that C#...
GridCtrl 控件FAQ - C/C++ - 清泛网 - 专注C/C++及内核技术
GridCtrl 控件FAQ目录GridCtrlEx控件FAQ.. 11. 一个固定用法... 12. 可以控制单元格是否可以编辑... 33. 在选定一个单元格时，选择整行... 34. 说明...
目录
1. 一个固定用法... 1
2. 可以控制单元格是否可以编辑... 3
3. 在选定一个单元格...
How fast is D compared to C++?
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edited Feb 28 '11 at 23:44
answered Feb 28 '11 at 13:14
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Difference between HashMap, LinkedHashMap and TreeMap
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answered May 22 '10 at 21:18
Michael BorgwardtMichael Borgwardt
320k7373 gold badges453453 silver badges688688 bronze badges
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What is the maximum value for an int32?
...0): 2 billion.
– 16807
Dec 3 '13 at 22:24
164
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Change text color of one word in a TextView
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edited May 14 '12 at 19:14
answered Aug 28 '11 at 15:50
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How to use clock() in C++
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207
#include <iostream>
#include <cstdio>
#include <ctime>
int main() {
std...
How to make Twitter bootstrap modal full screen
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285
I achieved this in Bootstrap 3 with the following code:
.modal-dialog {
width: 100%;
hei...
What is the formal difference in Scala between braces and parentheses, and when should they be used?
..., and only if, the method expects a single parameter. For example:
List(1, 2, 3).reduceLeft{_ + _} // valid, single Function2[Int,Int] parameter
List{1, 2, 3}.reduceLeft(_ + _) // invalid, A* vararg parameter
However, there’s more you need to know to better grasp these rules.
Increased compile c...