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Copy a file in a sane, safe and efficient way
... sane way:
#include <fstream>
int main()
{
std::ifstream src("from.ogv", std::ios::binary);
std::ofstream dst("to.ogv", std::ios::binary);
dst << src.rdbuf();
}
This is so simple and intuitive to read it is worth the extra cost. If we were doing it a lot, better to f...
What is that “total” in the very first line after ls -l? [closed]
...ern storage device.
Why so confusing?
This number is fairly detached from any physical or meaningful metric. Many junior programmers haven't had experience with file holes or hard/sym links. In addition, the documentation available on this specific topic is virtually non-existent.
The disjo...
How to perform a mysqldump without a password prompt?
...and in no case the root user. It can be done like this: GRANT LOCK TABLES, SELECT ON *.* TO 'BACKUPUSER'@'%' IDENTIFIED BY 'PASSWORD';
– gadjou
Feb 21 '17 at 8:34
...
To ARC or not to ARC? What are the pros and cons? [closed]
... work at all on iPhoneOS 3 or Mac OS X 10.5 or earlier. (This precludes me from using ARC in many projects.)
__weak pointers do not work correctly on iOS 4 or Mac OS X 10.6, which is a shame, but fairly easy to work around. __weak pointers are great, but they're not the #1 selling point of ARC.
Fo...
How to handle back button in activity
...
Yes, does anyone know how to do it from a fragment
– James Wierzba
Dec 6 '15 at 3:01
3
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how to prevent “directory already exists error” in a makefile when using mkdir
...$@ $<
Note use of $< instead of $^.
Finally prevent the .d files from being removed automatically:
.PRECIOUS: %/.d
Skipping the .d file, and depending directly on the directory, will not work, as the directory modification time is updated every time a file is written in that directory,...
PDOException SQLSTATE[HY000] [2002] No such file or directory
...
Laravel 4: Change "host" in the app/config/database.php file from "localhost" to "127.0.0.1"
Laravel 5+: Change "DB_HOST" in the .env file from "localhost" to "127.0.0.1"
I had the exact same problem. None of the above solutions worked for me. I solved the problem by changing the "hos...
How do I check if file exists in Makefile so I can delete it?
...
Thanks much! This point was not clear from reading the manual.
– Kevin Buchs
May 9 '19 at 5:22
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Why are dates calculated from January 1st, 1970?
...ing is standard.
Two Dozen Epochs
Time in computing is not always tracked from the beginning of 1970 UTC. While that epoch reference is popular, various computing environments over the decades have used at least nearly two dozen epochs. Some are from other centuries. They range from year 0 (zero) t...
Re-sign IPA (iPhone)
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@ValerioSantinelli You'll need to carry over entitlements from the previous code signing. FWIW push notifications will not work without entitlements. After unzipping: /usr/bin/codesign -d --entitlements :entitlements.plist /Payload/appname.app Then during the resigning add --entitle...