MingW-W64 64bit-warnings

gistfile1.txt

/home/andreas/cvs/dumb/src/it/readpsm.c: In function ‘it_psm_process_pattern’:
/home/andreas/cvs/dumb/src/it/readpsm.c:488:32: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
     pattern->n_entries = (int)((long)entry - (long)pattern->entry);
                                ^
/home/andreas/cvs/dumb/src/it/readpsm.c:488:46: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
     pattern->n_entries = (int)((long)entry - (long)pattern->entry);
                                              ^
[ 37%] Building C object CMakeFiles/dumb.dir/src/it/readoldpsm.c.obj
[ 38%] Building C object CMakeFiles/dumb.dir/src/it/readokt2.c.obj
[ 39%] Building C object CMakeFiles/dumb.dir/src/it/readokt.c.obj
[ 40%] Building C object CMakeFiles/dumb.dir/src/it/readmtm.c.obj
[ 41%] Building C object CMakeFiles/dumb.dir/src/it/readmod2.c.obj
[ 43%] Building C object CMakeFiles/dumb.dir/src/it/readmod.c.obj
[ 44%] Building C object CMakeFiles/dumb.dir/src/it/readdsmf.c.obj
/home/andreas/cvs/dumb/src/it/readdsmf.c: In function ‘it_riff_dsmf_process_pattern’:
/home/andreas/cvs/dumb/src/it/readdsmf.c:205:32: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
     pattern->n_entries = (int)((long)entry - (long)pattern->entry);
                                ^
/home/andreas/cvs/dumb/src/it/readdsmf.c:205:46: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
     pattern->n_entries = (int)((long)entry - (long)pattern->entry);
                                              ^
[ 45%] Building C object CMakeFiles/dumb.dir/src/it/readasy.c.obj
[ 46%] Building C object CMakeFiles/dumb.dir/src/it/readamf2.c.obj
[ 47%] Building C object CMakeFiles/dumb.dir/src/it/readamf.c.obj
[ 48%] Building C object CMakeFiles/dumb.dir/src/it/readam.c.obj
/home/andreas/cvs/dumb/src/it/readam.c: In function ‘it_riff_am_process_pattern’:
/home/andreas/cvs/dumb/src/it/readam.c:258:32: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
     pattern->n_entries = (int)((long)entry - (long)pattern->entry);
                                ^
/home/andreas/cvs/dumb/src/it/readam.c:258:46: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
     pattern->n_entries = (int)((long)entry - (long)pattern->entry);
                                              ^

From freenode #allegro:

Interesting. We have this history: your 64-bit patch, kode fixes warnings, my ssize_t patch, kode fixes warnings. IIRC in one of these 4, n_entries changed from int to size_t, which I would have liked to avoid because it touches magic music rendering.

My reason to change int n_entries to size_t entries: it reduced a ton of warnings that otherwise had required many explicit casts.

Ideally, the entire codebase gets an overhaul with fixed-width ints, explicit truncation, and 0 warnings with -Wconversion. But that's the stuff of dreams :)

Use your best judgement for that warning, I'll be open to discuss solutions.