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What is the difference between exit() and abort()?

...void) { cout<<"exit function 2"<<endl; } int main(int argc, char**argv) { atexit (myProgramIsTerminating1); atexit (myProgramIsTerminating2); //abort(); return 0; } Comments: If abort is uncommented: nothing is printed and the destructor of someobject will not be called. ...
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How to remove constraints from my MySQL table?

...an show the names of the foreign keys by using this query, as shown here: SELECT CONSTRAINT_NAME FROM INFORMATION_SCHEMA.KEY_COLUMN_USAGE WHERE REFERENCED_TABLE_SCHEMA = '<database>' AND REFERENCED_TABLE_NAME = '<table>'; Then remove the foreign key by running the before mentioned DR...
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live output from subprocess command

...ptimization: If we are only using one pipe, or no pipe at # all, using select() or threads is unnecessary. if [self.stdin, self.stdout, self.stderr].count(None) >= 2: But, alas, here we've made at least two, and maybe three, different pipes, so the count(None) returns either 1 or 0. We...
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OS X10.9 环境下部署 QT5.3.1 常见的编译问题 - 更多技术 - 清泛网 - 专注C/C++及内核技术

... 或 1 sudo -i xcode-select -switch /Applications/Xcode6-Beta6.app/Contents/Developer 2、:-1: error: Could not resolve SDK path for 'macosx10.8' ###export SDKROOT=/Applications/Xcode6-Beta6.app/Contents/Developer/Platforms/Mac...
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Eclipse HotKey: how to switch between tabs?

... in browser or window in operating system ( Cmd / Win + Tab ) without file-selection from the list. How to do this easy thing in Eclipse? ...
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Drop multiple tables in one shot in mysql

... of tables to be deleted. Get table using the below For sql server - SELECT CONCAT(name,',') Table_Name FROM SYS.tables; For oralce - SELECT CONCAT(TABLE_NAME,',') FROM SYS.ALL_TABLES; Copy and paste the table names from the result set and paste it after the DROP command. ...
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Check image width and height before upload with Javascript

... return false; } } else { alert("Please select a valid Image file."); return false; } } share | improve this answer | ...
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require file as string

... The selected answer is deprecated and not recommended anymore. NodeJS documentation suggests other approaches like: loading modules via some other Node.js program but it does not expand any more. You can use a very simple libr...
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Replace input type=file by an image

... be updated with the filename or at least a message that the file has been selected successfully. The user has no visual input on what happened after he selected the file. Could this be done please? Perhaps change to a different image, when a file is chosen? – JoaMika ...
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Passing a Bundle on startActivity()?

...always a String. As value you can use the primitive data types int, float, chars, etc. We can also pass Parceable and Serializable objects from one activity to other. Intent intent = new Intent(context, YourActivity.class); intent.putExtra(KEY, <your value here>); startActivity(intent); Ret...