Pro*C char copying (ORACLE DB)

Question

I want to copy a char onto a CHAR(18 BYTE) from my ORACLE Database:

myfunction(char *idnr)
{
    EXEC SQL BEGIN DECLARE SECTION;     
    char* idn;
    EXEC SQL END DECLARE SECTION;

    strcpy(idn,idnr);
...}

but it seems it doesn't work

Answer 1

char* idn;

First of all you need to allocate memory for it or Use array instead

 char idn[strlen(idnr) + 1];