显示动态数组中的数字 [英] Displaying a number from dynamic array

问题描述

大家好，


我遇到了问题。让我们说，我有一个充满数据（数字）的文件，我想把它们读成动态数组。在做完之后，我想看看，例如，数组的第三个元素和屏幕中的全部数字。我怎么能这样做？

这里是代码

展开 | 选择 | Wrap | 行号

解决方案

你考虑过使用矢量吗？它将为您处理大小和动态分配。


Adrian

你考虑过使用矢量吗？它将为您处理大小和动态分配。


Adrian

谢谢你。现在我正在使用向量。

代码中的问题是你只输入*数组或数组的第一个元素。每次文件中有数字时，都会覆盖第一个元素。现在，第三个元素（array [2]）从未被初始化并仍然保持garbarge值 - 就像你得到的那样。您应该使用size作为数组的索引：inf>>阵列[大小++]

Hi everyone,

I'' ve got a problem. Let''s say, I''ve got a file full of data (numbers) and I want to read them into a dynamic array. After doing it, I want to see, for instance, the third element of the array and the whole amount of numbers in the screen. How could I do that?
Here''s the code

Expand|Select|Wrap|Line Numbers

解决方案

Have you considered using a vector? It will handle the size and dynamic allocation for you.


Adrian

Have you considered using a vector? It will handle the size and dynamic allocation for you.


Adrian

Thanks man. Now I''m working with vectors.

The problem in your code is that you are only inputting into *array, or the first element of the array. This first element is overwritten every time there is a number in your file. Now, the third element (array[2]) has never been initialized and still holds garbarge values - like the one you got. You should use size as the index of the array: inf >> array[size++]

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