参考文档
Function
void * memset ( void * ptr, int value, size_t num );
Fill block of memory
Sets the first num bytes of the block of memory pointed by ptr to the specified value (interpreted as an unsigned char).
Parameters
ptr
Pointer to the block of memory to fill.
value
Value to be set. The value is passed as an int, but the function fills the block of memory using the unsigned char conversion of this value.
num
Number of bytes to be set to the value.
size_t is an unsigned integral type.
参数含义
参数名称 | 参数含义 |
---|---|
ptr | 内存块的地址(起始位置) |
value | 要填充的内容 |
num |