|Command||basic.%memcpy C Function/BASIC Program
Applicable release versions: AP/Unix
|Category||BASIC Program (486)|
|Description||copies the number of characters specified by "number" from memory area "s2" into "s1".
"s1" and "s2" are either Pick/BASIC strings or pointers to a character. "variable" is a pointer to "s1". If "s1" is a Pick string, the value returned by this function has no meaning.
|Syntax||variable=(char*)%memcpy(s1, s2, number )|
* Read 1024 bytes from device * and copy them in a Pick buffer precision 0 char buffer p=(char*)%malloc( 1024 ) n=%read(fd, (char*)p, 1024 ) %memcpy( buffer, p+32, n-32 ) In this example, note the operation on pointers, allowed because of the statement 'precision 0'. This allows reading data from a device, and copy only the portion after a fixed size header (32 bytes in this example).