StackOverflow Questions for Tag: null-pointer

Matthieu M.

Reputation: 299730

Is it guaranteed to be safe to perform memcpy(0,0,0)?

cmemcpylanguage-lawyernull-pointer

Score: 101

Answers: 5

xdevel2000

Reputation: 21364

C23 and memory representation of nullptr

cnullnull-pointernullptrc23

Score: 1

Answers: 2

Akib Aftermath

Reputation: 3

An inclusion of a null pointer is making content of another pointer to have a value (most probably garbage)

cpointersgarbagenull-pointer

Score: 0

Answers: 1

GManNickG

Reputation: 503775

When does invoking a member function through a null pointer result in undefined behavior?

c++undefined-behaviorlanguage-lawyerstandards-compliancenull-pointer

Score: 132

Answers: 4

wimalopaan

Reputation: 5462

Is a non-constant zero integer cast to `void *` still a null pointer?

clanguage-lawyerstandardsnull-pointernullptr

Score: 7

Answers: 2

wimalopaan

Reputation: 5462

GCC: null-pointer-checks and undefined-behaviour

gccundefined-behaviornull-pointer

Score: 0

Answers: 2

displayname

Reputation: 1

defining the start of a string in a CSV file to guarantee proper comparison

c++null-pointer

Score: 0

Answers: 0

Devon

Reputation: 1

Nested strtok() calls to tokenize given string does not work as expected

cnested-loopsc-stringsstrtoknull-pointer

Score: 0

Answers: 1

Lundin

Reputation: 213286

Why isn't the keyword false an integer constant expression in gcc C23?

cgcclanguage-lawyernull-pointerc23

Score: 37

Answers: 2

Earlz

Reputation: 63805

Why can you assign nullptr to std::string?

c++stringc++11stdstringnull-pointer

Score: 8

Answers: 2

user2354035

Reputation:

Can't find @Nullable inside javax.annotation.*

javaannotationsnullpointerexceptionnullablenull-pointer

Score: 180

Answers: 10

Sasha

Reputation: 361

C: NULL > NULL always false?

cpointersstandardsnull-pointer

Score: 2

Answers: 1

TLW

Reputation: 1439

Is &*NULL well-defined in C++?

c++language-lawyernull-pointer

Score: 11

Answers: 1

luk32

Reputation: 16070

Can pointer taken from reference ever be null in well-defined c++?

c++pointersreferencelanguage-lawyernull-pointer

Score: 5

Answers: 1

Step

Reputation: 307

NULL POINTER in C++

c++pointersnullmemory-addressnull-pointer

Score: 0

Answers: 2

user454083

Reputation: 1397

In which cases is the "this" pointer null in a constructor?

c++constructorthisnull-pointer

Score: 20

Answers: 4

chqrlie

Reputation: 144550

Is there an equivalent of attribute((nonnull)) in C23?

clanguage-lawyernull-pointerc23

Score: 4

Answers: 2

Shahbaz

Reputation: 47493

Is (int *)0 a null pointer?

clanguage-lawyernull-pointer

Score: 22

Answers: 2

Rupa TS

Reputation: 19

File pointer null in c

cfile-handlingnull-pointer

Score: -1

Answers: 1

hashim

Reputation: 55

Defining a Macro having struct argument

cpointersstructnull-pointer

Score: 1

Answers: 1

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StackOverflow Questions for Tag: null-pointer

Is it guaranteed to be safe to perform memcpy(0,0,0)?

C23 and memory representation of nullptr

An inclusion of a null pointer is making content of another pointer to have a value (most probably garbage)

When does invoking a member function through a null pointer result in undefined behavior?

Is a non-constant zero integer cast to `void *` still a null pointer?

GCC: null-pointer-checks and undefined-behaviour

defining the start of a string in a CSV file to guarantee proper comparison

Nested strtok() calls to tokenize given string does not work as expected

Why isn&#39;t the keyword false an integer constant expression in gcc C23?

Why can you assign nullptr to std::string?

Can&#39;t find @Nullable inside javax.annotation.*

C: NULL &gt; NULL always false?

Is &amp;*NULL well-defined in C++?

Can pointer taken from reference ever be null in well-defined c++?

NULL POINTER in C++

In which cases is the &quot;this&quot; pointer null in a constructor?

Is there an equivalent of __attribute__((nonnull)) in C23?

Is (int *)0 a null pointer?

File pointer null in c

Defining a Macro having struct argument

Why isn't the keyword false an integer constant expression in gcc C23?

Can't find @Nullable inside javax.annotation.*

C: NULL > NULL always false?

Is &*NULL well-defined in C++?

In which cases is the "this" pointer null in a constructor?

Is there an equivalent of attribute((nonnull)) in C23?