passing null pointer to memcpy
For starters, it mentions (§/2) in regards to memcpy that results in undefi...
For starters, it mentions (§/2) in regards to memcpy that results in undefined behavior, because null pointers are considered "invalid.
⬇ Download Full VersionHi, Is it safe to pass a NULL pointer to the memcpy, memmove functions (and...
Hi, Is it safe to pass a NULL pointer to the memcpy, memmove functions (and other similar ones) if the size parameter is zero? memcpy (dest.
⬇ Download Full Versionmemcpy(NULL, src, 1); . not obvious if null pointers are allowed. .. When p...
memcpy(NULL, src, 1); . not obvious if null pointers are allowed. .. When passing NULL to a library function performs a useful operation .
⬇ Download Full VersionHello, from running the regression test suite (including TAP tests) and als...
Hello, from running the regression test suite (including TAP tests) and also sqlsmith, I've got a couple of places where UBSan reported calls to.
⬇ Download Full VersionOn 4/16/16 AM, Piotr Stefaniak wrote: > On , Piotr Stefaniak wrote: >...
On 4/16/16 AM, Piotr Stefaniak wrote: > On , Piotr Stefaniak wrote: >> > from running the regression test suite (including.
⬇ Download Full Versiona pointer outside the address space > of the program, or a null pointer,...
a pointer outside the address space > of the program, or a null pointer, it safe to pass a null pointer as the 2nd argument to > memcpy()? Or >.
⬇ Download Full VersionHere's another example of this fine feature: #include #include > #i...
Here's another example of this fine feature: #include #include > #include #define LENGTH int main(int argc.
⬇ Download Full VersionReadelf: do not pass NULL pointer to memcpy. From: Nick Clifton ; To: binut...
Readelf: do not pass NULL pointer to memcpy. From: Nick Clifton ; To: binutils at sourceware dot org; Date: Tue.
⬇ Download Full VersionA UBSAN warning can be triggered because the link title is an empty string:...
A UBSAN warning can be triggered because the link title is an empty string: src/inlines.c runtime error: null pointer passed as argument 2, which is.
⬇ Download Full VersionThe two legal possibilities are to return a null pointer or a unique pointe...
The two legal possibilities are to return a null pointer or a unique pointer that they will pass a null check, which can have semantic meaning. None of memset, memcpy, or memmove are documented to accept null pointers.
⬇ Download Full Versionstd::equal((int*)0, (int*)0, p) and std::equal(p, p, (int*)0) are valid for...
std::equal((int*)0, (int*)0, p) and std::equal(p, p, (int*)0) are valid for any input iterator p, and must not pass a null pointer to memcpy. Similarly.
⬇ Download Full VersionEven worse, in the case of the string functions, the null byte marking the ...
Even worse, in the case of the string functions, the null byte marking the end The memcpy function copies size bytes from the object beginning at from into . The return value is a pointer into to one byte past where c was copied, or a null pointer if . (see Variable Size Automatic) can interfere with the parameter passing.
⬇ Download Full VersionYes, the C standard explicitly addresses this in §/2, which applies to memc...
Yes, the C standard explicitly addresses this in §/2, which applies to memcpy and all a pointer outside the address space of the program, or a null pointer, or a pointer to non-modifiable storage when the corresponding parameter is not.
⬇ Download Full VersionOn many platforms, dereferencing a null pointer results in abnormal program...
On many platforms, dereferencing a null pointer results in abnormal program It also uses the unsigned type size_t to pass the length parameter, ensuring When c_str is dereferenced in memcpy(), the program exhibits undefined behavior.
⬇ Download Full Versionvoid* memcpy(void* dest, const void* src, std::size_t count); If either des...
void* memcpy(void* dest, const void* src, std::size_t count); If either dest or src is a null pointer, the behavior is undefined, even if count is.
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