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move_uploaded_file gives “failed to open stream: Permission denied” error
...t when typing ps aux | grep httpd and <?php echo exec('whoami'); ?>. Does anyone know why ?
– kukinsula
Jun 17 '14 at 16:17
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The difference between fork(), vfork(), exec() and clone()
...ry map and creates a new one, it was a needless expense. Nowadays, fork() doesn't copy the memory; it's simply set as "copy on write", so fork()+exec() is just as efficient as vfork()+exec().
clone() is the syscall used by fork(). with some parameters, it creates a new process, with others, it cre...
How to print a string in fixed width?
... '{<5}'.format('ss') 'ss ' just like before, but without the 0, does the same thing or 'Second {1: <5} and first {0: <5}'.format('ss', 'sss') 'Second sss and first ss ' so you can reorder or even output the same variable many times in a single output string.
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Quick and easy file dialog in Python?
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This does not work well on MacOS: the dialog opens but becomes unresponsive and the whole script hangs.
– Periodic Maintenance
Jun 14 '17 at 7:49
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On showing dialog i get “Can not perform this action after onSaveInstanceState”
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But why does this issue occur? Is it ok to ignore the error? What happens when you do? After all, when clicking, it means that the activity is live and well... Anyway, I've reported about this here because I consider this a bug: code...
How to resize an image with OpenCV2.0 and Python2.6
...d adopted this example but unfortunately, this code is for OpenCV2.1 and does not seem to be working on 2.0. Here my code:
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How to force garbage collection in Java?
... In my experience, this method always invokes the garbage collector. It does so with enough regularity that my plots of memory use versus number of objects declared are always strictly linear (accounting for padding, etc.).
– Jim Pivarski
Jul 9 '15 at 19:49
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Running MSBuild fails to read SDKToolsPath
... have found that if you only install Windows SDK 7.1 and .NET 4.0. MSBuild does not set proper paths to SDK40ToolsPath and SDK35ToolsPath. To fix it, I had to change a few entries in HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\MSBuild\ToolsVersions\4.0: "SDK40ToolsPath"="$(Registry:HKEY_LOCAL_MACHINE\\SO...
C# Float expression: strange behavior when casting the result float to int
...* 10 in a high precision intermediate form before converting to int. If it does, then the result is 61. If it does not, then the result is 62.
In the second example, the explicit assignment to float forces the rounding to take place before the conversion to integer.
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Why can I change value of a constant in javascript
...nstant references, and arrays and objects are like "lists", modifying them does not change the reference or re-declare the constant.
– adeneo
May 2 '14 at 20:44
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