memset
Syntax: #include <string.h> void* memset( void* buffer, int ch, size_t count ); The function memset() copies ch into the first count characters of buffer, and returns buffer. memset() is useful for intializing a section of memory to some value. For example, this command: memset( the_array, '\0', sizeof(the_array) ); ...is a very efficient way to set all values of the_array to zero. The table below compares two different methods for initializing an array of characters: a for-loop versus memset(). As the size of the data being initialized increases, memset() clearly gets the job done much more quickly:
Related topics:
|