Podcast
Questions and Answers
Which C standard library functions are used for dynamic memory allocation?
Which C standard library functions are used for dynamic memory allocation?
- malloc, new, delete
- malloc, free, new
- malloc, realloc, calloc, aligned_alloc (correct)
- new, delete, free
In which situations using new/delete is not applicable for dynamic memory allocation?
In which situations using new/delete is not applicable for dynamic memory allocation?
- Garbage collection code or performance-sensitive code (correct)
- Beginner-level programs or prototype development
- Memory-intensive applications or multi-threaded programs
- Small programs or non-performance critical code
What is the recommended alternative to new/delete in C++ for situations where they are not applicable?
What is the recommended alternative to new/delete in C++ for situations where they are not applicable?
- New and delete[]
- Realloc and calloc
- Malloc and placement new (correct)
- Aligned_alloc and free
Where are static-duration variables allocated?
Where are static-duration variables allocated?
What type of variables are allocated on the stack and come and go as functions are called and return?
What type of variables are allocated on the stack and come and go as functions are called and return?
Study Notes
Dynamic Memory Allocation
- The C standard library functions used for dynamic memory allocation are
malloc,calloc,realloc, andfree.
Limitations of new/delete
newanddeleteare not applicable in situations where the exact size of the memory to be allocated is not known until runtime.- They are also not applicable in C programming.
Alternative to new/delete
- The recommended alternative to
newanddeletein C++ for situations where they are not applicable is to usemalloc,calloc,realloc, andfreefrom the C standard library.
Memory Allocation
- Static-duration variables are allocated in the data segment of the program's memory.
- Automatic variables are allocated on the stack and come and go as functions are called and return.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
Test your knowledge of manual memory management for dynamic memory allocation in C, including functions like malloc, realloc, calloc, aligned_alloc, and free. Explore scenarios where new/delete may not be applicable in C++.
