The precompiler supports the C programming rules for variable scoping. Host variables defined within nested programs can use the external clause plus the variable name. For example:
FILE 1:
CS_CHAR username[31]
main()
{
sub1();
printf(“%s\n”, username);
}
FILE 2:
void sub1()
{
exec sql begin declare section;
extern char username[31];
exec sql end declare section;
exec sql select USER() into :username;
return;
}
