include/kernel/mem

mem.h

Functions

void *memcpy(void *dest, const void *src, size_t n)

Copies memory from one location to another.

Version

0.0.1

Author

Sable Ayala

Date

05/12/2024

Parameters:

  • dest – The destination to move memory values (pointer)

  • src – The source location to move memory from (pointer)

  • n – The size of the memory to move

void *memset(void *s, int c, size_t n)

Fill a block of memory with a particular value.

Version

0.0.1

Author

Sable Ayala

Date

05/12/2024

Parameters:

  • s – The starting address of memory to be filled

  • c – The value to be filled

  • n – The number of bytes to be filled starting from \(s\) to be filled

void *memmove(void *dest, const void *src, size_t n)

Copy a block of memory from a location to another.

Version

0.0.1

Parameters:

  • dest – Destination of memory block

  • src – Memory block to move

  • n – Size of the memory block

int memcmp(const void *s1, const void *s2, size_t n)

Compate two blocks of memory.

Example usage: 

  int arr1[] = {1, 2, 3, 4, 5};
  int arr2[] = {1, 2, 3, 4, 6};

  
  int result = memcmp(arr1, arr2, sizeof(arr1)); // result != 0
Version

0.0.1

Parameters:

  • s1 – Pointer to LHS block of memory

  • s2 – Pointer to RHS block of memory

  • n – The number of bytes to be compared

Returns:

This function returns <0 if s1 is less than s2, >0 s2 is less than s1 and ==0 if s1 is equivalent to s2