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added info on initializing arrays with fewer values than there are elements (#21814)

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I also stated that values are entered into an array in ascending order, starting with the first element.
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staerGazer
2018-11-17 11:44:53 -05:00
committed by Christopher McCormack
parent 42818b2271
commit bd8411405d
1 changed files with 7 additions and 1 deletions
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8
guide/english/cplusplus/arrays/index.md
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@@ -15,12 +15,18 @@ int numbers [5];
Initializiation: Initializiation:
```C++ ```C++
//Initialization with entries: //Initialization with values:
int numbers [5] = {1, 2, 3, 4, 5}; int numbers [5] = {1, 2, 3, 4, 5};
//When initializing an array with values, the first value will be stored as the first element, the second value will be stored as the second element, ect... so the first element in this array is the value 1, and the third element is the value 3.
//Initialization with no values: //Initialization with no values:
int numbers [5] = {}; int numbers [5] = {};
//Initialization with fewer values than elements:
int numbers [5] = {6};
//Initializing an array with fewer values than there are elements will set the trailing elements to 0.
//int numbers [5] = {6} is equivalent to int numbers [5] = {6, 0, 0, 0, 0};
//Initialization with declaration: //Initialization with declaration:
int numbers [] = {1, 2, 3, 4, 5}; int numbers [] = {1, 2, 3, 4, 5};
//Note that here the number of values defines the size of the array. //Note that here the number of values defines the size of the array.