| Function: | memset |
|---|---|
| Prototype: | void memset( void* destination, int value, int size ) |
| Description: | Sets all words in the target memory region to the same given value |
| Arguments: | |
| void* destination | Pointer to the beginning of destination region |
| int value | Value to which words will be set |
| int size | Number of words to set |
| Function: | memcpy |
|---|---|
| Prototype: | void memcpy( void* destination, void* source, int size ) |
| Description: | Copies the contents of the given source memory region into the destination region |
| Arguments: | |
| void* destination | Pointer to the beginning of destination region |
| void* source | Pointer to the beginning of source region |
| int size | Number of words to copy |
| Function: | memcmp |
|---|---|
| Prototype: | int memcmp( void* region1, void* region2, int size ) |
| Description: | Compares the contents of the 2 given memory regions |
| Returns: | |
| int | A positive result if values from region1 are greater than those of region2. Negative if values from region1 are less than those of region2. Zero when equal |
| Arguments: | |
| void* region1 | Pointer to the beginning of memory region 1 |
| void* region2 | Pointer to the beginning of memory region 2 |
| int size | Number of words to compare |
| Function: | rand |
|---|---|
| Prototype: | int rand() |
| Description: | Generates and returns the next pseudo-random number |
| Returns: | |
| int | The created value |
| Function: | srand |
|---|---|
| Prototype: | void srand( int seed ) |
| Description: | Sets the seed for the pseudo-random number generator. This value will be the first one obtained on next calls to rand(). For a same seed the sequence of values obtained will be the same |
| Arguments: | |
| int seed | The new seed to use. Cannot be zero (int that case it is ignored) |