Examples of using Null pointer in English and their translations into Vietnamese
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Colloquial
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Ecclesiastic
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Computer
Error: null pointer was accessed.
Safe- Avoid entire classes of errors such as null pointer exception.
If ptr is a null pointer, no action occurs.
When C++ was first invented, new returned a null pointer on failure.
A null pointer is returned if no match is found.
That throws a null pointer exception.
The NULL pointer is a constant with a value of zero defined in several standard libraries.
Indirection through a null pointer is checked.
C++ supports null pointer, which is a constant with a value of zero defined in several standard libraries.
If an error occurs, a null pointer is returned.
To check for a null pointer you can use an if statement as follows.
Safe- Avoid entire classes of errors such as null pointer exception.
The guy who invented null pointers, Tony Hoare, calls it“my billion dollar mistake”.
The C library Macro NULL is the value of a null pointer constant.
C++ supports null pointer, which is a constant with a value of zero defined in several standard libraries.
When C++ was first invented, new returned a null pointer on failure.
Which is the same thing("null pointer exception"), but in unsafe code, variables are often cast to value-types/arrays, etc.
This can also improve your app's performance andhelp prevent memory leaks and null pointer exceptions.
The last block(25) contains -1 indicating a null pointer and does not point to any other block.
If the End-of-File is encountered and no characters have been read,the contents of str remain unchanged and a null pointer is returned.
In Objective-C,messages may be sent to a nil object(which is a null pointer) without causing the program to be interrupted;
If it is 0 and ptr points to an existing block of memory,the memory block pointed by ptr is deallocated and a NULL pointer is returned.
Swift has features addressing some common programming errors like null pointer dereferencing and provides syntactic sugar to help avoid the pyramid of doom.
If this happens and the operating system cannotassign the memory that we request with the operator new, a null pointer will be returned.
If all unused pointers are given the null value and you avoid the use of a null pointer, you can avoid the accidental misuse of an uninitialized pointer. .
In JavaScript,null is not a“reference to a non-existing object” or a“null pointer” like in some other languages.
Facebook says that Infer helps it find hundreds of potentialbugs every month by scanning code for issues like null pointer access, as well as resource and memory leaks- the kinds of issues that can easily cause app crashes.
If the default argument is implicit(sometimes by using a keyword such as Optional)then the language provides a well-known value(such as Null pointer, Empty, zero, an empty string, etc.) if a value is not provided by the caller.
If you don't have any address to be specified in the pointer at the time of declaration, you can assign NULL value.