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What uses are there for “placement new”?
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We use it with custom memory pools. Just a sketch:
class Pool {
public:
Pool() { /* implementation details irrelevant */ };
virtual ~Pool() { /* ditto */ };
virtual void *allocate(size_t);
virtual void deallocate(void *);
static Pool::misc_pool() ...
static function in C
...t from other translation units, which helps provide encapsulation.
helper_file.c
int f1(int); /* prototype */
static int f2(int); /* prototype */
int f1(int foo) {
return f2(foo); /* ok, f2 is in the same translation unit */
/* (basically same .c file) as f1 ...
Unlink of file failed
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That usually means a process is still using that specific file (still has an handle on it)
(on Windows, ProcessExplorer is good at tracking that kind of process)
Try closing your other programs, and try again your git pull.
Note that you have an alternative with the GIT_ASK_YESNO ...
File upload progress bar with jQuery
I am trying to implement an AJAX file upload feature in my project. I am using jQuery for this; my code submits the data using AJAX. I also want to implement a file upload progress bar. How can I do this? Is there any way to calculate how much has already been uploaded so that I can calculate the pe...
Saving and Reading Bitmaps/Images from Internal memory in Android
...ntext());
// path to /data/data/yourapp/app_data/imageDir
File directory = cw.getDir("imageDir", Context.MODE_PRIVATE);
// Create imageDir
File mypath=new File(directory,"profile.jpg");
FileOutputStream fos = null;
try {
fos = ...
Why does Java's hashCode() in String use 31 as a multiplier?
...ap.of(42, 42).hashCode() or Map.of("foo", "foo", "bar", "bar").hashCode(), etc, are predictably zero. So don’t use maps as keys for other maps…
– Holger
Aug 30 '19 at 9:12
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How do you fix a bad merge, and replay your good commits onto a fixed merge?
I accidentally committed an unwanted file ( filename.orig while resolving a merge) to my repository several commits ago, without me noticing it until now. I want to completely delete the file from the repository history.
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How to copy a file to multiple directories using the gnu cp command
Is it possible to copy a single file to multiple directories using the cp command ?
22 Answers
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How can I clear an HTML file input with JavaScript?
I want to clear the file input in my form.
18 Answers
18
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Print a file, skipping the first X lines, in Bash [duplicate]
I have a very long file which I want to print, skipping the first 1,000,000 lines, for example.
13 Answers
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