Position independence qualifiers

The use of ‑‑apcs /ropi is not supported when compiling C++. You can compile only the C subset of C++ with /ropi.

Some constructs that are legal C do not work when compiled for ‑‑apcs=/ropi or ‑‑apcs=/rwpi, for example:

int i;               // rw
int *p1 = &i;        // this static initialization does not work
                     // with ‑‑apcs=/rwpi ‑‑no_lower_rwpi

extern const int ci; // ro
const int *p2 = &ci; // this static initialization does not work
                     // with ‑‑apcs=/ropi

However, to enable these static initializations to work, use the ‑‑lower_rwpi and ‑‑lower_ropi options.

To compile this code, type:

armcc ‑‑apcs=/rwpi/ropi ‑‑lower_ropi

You do not have to specify ‑‑lower_rwpi, because this is the default.