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How can I get a file's size in C? [duplicate]

How can I find out the size of a file I opened with an application written in C ? I would like to know the size, because I want to put the content of the loaded file into a string, which I allocate using malloc() . Just writing malloc(10000*sizeof(char)); is IMHO a bad idea. ...
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Big-O summary for Java Collections Framework implementations? [closed]

I may be teaching a "Java crash-course" soon. While it is probably safe to assume that the audience members will know Big-O notation, it is probably not safe to assume that they will know what the order of the various operations on various collection implementations is. ...
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ios simulator: how to close an app

When you "run" the simulator from xCode, the app automatically launches, and then you can click the home button to suspend the app. What I want to do is close the app from within the simulator. So, how can this be done? ...
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Correctly determine if date string is a valid date in that format

... You can use DateTime class for this purpose: function validateDate($date, $format = 'Y-m-d') { $d = DateTime::createFromFormat($format, $date); // The Y ( 4 digits year ) returns TRUE for any integer with any number of digits so changing the compar...
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libcurl的使用总结 - C/C++ - 清泛网 - 专注C/C++及内核技术

libcurl的使用总结最近的项目中由于要在C++代码中调用PHP的URL,所以不得不借助libcurl这个库,由于第一次用,所以很多地方很是纠结,特此写在这里,方便给同...最近的项目中由于要在C++代码中调用PHP的URL,所以不得不借助libcurl...
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What do I use for a max-heap implementation in Python?

Python includes the heapq module for min-heaps, but I need a max heap. What should I use for a max-heap implementation in Python? ...
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Check folder size in Bash

I'm trying to write a script that will calculate a directory size and if the size is less than 10GB, and greater then 2GB do some action. Where do I need to mention my folder name? ...
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rgdal package installation

The issue here is not exactly how to plot maps through R, as I have found already a pretty nice example here , but rather how to make it work. In fact, I am unable to load library rgdal : ...
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How to find all serial devices (ttyS, ttyUSB, ..) on Linux without opening them?

What is the proper way to get a list of all available serial ports/devices on a Linux system? 12 Answers ...
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Get Image size WITHOUT loading image into memory

I understand that you can get the image size using PIL in the following fashion 6 Answers ...