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Pointers in C: when to use the ampersand and the asterisk?
...rst element
To get the second element:
int a[2]; // array
int i = *(a + 1); // the value of the second element
int i2 = a[1]; // the value of the second element
So the [] indexing operator is a special form of the * operator, and it works like this:
a[i] == *(a + i); // these two statements a...
Uninstall all installed gems, in OSX?
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@ character before a function call
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the "@" will silence any php errors your function could raise.
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Where are ${EXECUTABLE_NAME} and ${PRODUCT_NAME} defined
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The PRODUCT_NAME is defined in the target's Build Settings in the Packaging section. It has th...
Why does Maven warn me about encoding?
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When you run the goal archetype:create-from-project, Maven generates a POM file for building th...
Git: How to remove file from historical commit?
I have commit with id 56f06019 (for example). In that commit i have accidentally commited large file (50Mb). In another commit i add the same file but in the right size (small). Now my repo when i clone is too heavy :( How to remove that large file from repo history to reduce the size of my repo ?
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Quickest way to convert XML to JSON in Java [closed]
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194
JSON in Java has some great resources.
Maven dependency:
<dependency>
<groupId>...
ExpandableListView - hide indicator for groups with no children
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What does f+++++++++ mean in rsync logs?
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201
Let's take a look at how rsync works and better understand the cryptic result lines:
1 - A huge...
地图组件（高德地图） · App Inventor 2 中文网
...一个特定的URL。
默认高德地图简图模式：https://wprd01.is.autonavi.com/appmaptile?x={x}&y={y}&z={z}&style=7
可调整地图样式，变量说明如下：
域名前缀(wprd,webst)：效果一样，目前还没有找出规律。01 ~ 04 随意都可以，负载均衡用。
lang：...