_CP_writev is equivalent to the writev and writevu BASIC statements.
| Type | BASIC Statement |
|---|---|
| _CP_WRITEV | writev string1 on expression1,string2,expression2 |
| _CP_WRITEUV | writevu string1 on expression1,string2,expression2 |
expression1 should be an integer file descriptor returned by the _CP_open call.
int _CP_writev(int type, CPSTR* string1, int expression1, CPSTR* string2, expression2)
This function returns -1 if an error occurs. The error code is contained in _CP_errno.
/* Writes "hi" into attribute 1 of item "myid" in "myfile". */
CPSTR * s = _CP_mkstr("myfile");
CPSTR * t = _CP_mkstr("hi");
CPSTR * id = _CP_mkstr("myid");
int f;
_CP_open(&f,_CP_str_null,s);
_CP_writev(_CP_WRITE, t, f, id, 1);