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When you exit a C application, is the malloc-ed memory automatically freed?
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It depends on the operating system. The majority of modern (and all major) operating systems will free memory not freed by the program when it ends.
Relying on this is bad practice and it is better to free it explicitly. The issue isn't just that your code looks bad. You may decide you w...
Is delete this allowed?
Is it allowed to delete this; if the delete-statement is the last statement that will be executed on that instance of the class? Of course I'm sure that the object represented by the this -pointer is new ly-created.
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Can a shell script set environment variables of the calling shell? [duplicate]
..., when run, will set some environment variables that will stay set in the caller's shell.
21 Answers
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How to convert timestamps to dates in Bash?
... a date. The input can come either from the first parameter or from stdin, allowing for the following usage patterns:
15 An...
How to use a wildcard in the classpath to add multiple jars? [duplicate]
...ldcard character *, which is considered equivalent to specifying a list of all the files in the directory with the extension .jar or .JAR. For example, the class path entry foo/* specifies all JAR files in the directory named foo. A classpath entry consisting simply of * expands to a list of all the...
When to use references vs. pointers
...going in undefined-behaviour-land;
the reference attribute version doesn't allow (without easy to spot tricks) the problem with 1.
the reference attribute version is simpler to understand for the user: you have to provide a valid object, not something that could be null.
If the behaviour of the fun...
Gradle build without tests
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Try:
gradle assemble
To list all available tasks for your project, try:
gradle tasks
UPDATE:
This may not seem the most correct answer at first, but read carefully gradle tasks output or docs.
Build tasks
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assemble - Assembles the outputs...
Import Error: No module named numpy
...stion , but still one step behind. I have only one version of Python 3 installed on my Windows 7 ( sorry ) 64-bit system.
2...
Best practices for exception management in Java or C# [closed]
... to catch exceptions and turn them into error codes. Why do you think the caller would prefer error codes over exceptions when the latter is the default in both Java and C#?
As for your questions:
You should only catch exceptions that you can actually handle. Just
catching exceptions is not the ...
Password masking console application
...comments, and modifying it to use SecureString instead of String, test for all control keys, and not error or write an extra "*" to the screen when the password length is 0, my solution is:
public static SecureString getPasswordFromConsole(String displayMessage) {
SecureString pass = new Secure...