Some compilers produced warnings about possible use of
uninitialised variables (although such use was in fact not possible)
These warnings were harmless (perhaps even erroneous) but
it's no problem to avoid them.
const struct variable **v2 = NULL;
size_t n_v2;
const struct variable **v2 = NULL;
size_t n_v2;
vp *pairs = NULL;
/* One sample mode */
vp *pairs = NULL;
/* One sample mode */
+ double testval = SYSMIS;
/* Independent samples mode */
const struct variable *gvar;
union value gval0;
union value gval1;
/* Independent samples mode */
const struct variable *gvar;
union value gval0;
union value gval1;
tt.wv = dict_get_weight (dict);
tt.dict = dict;
tt.wv = dict_get_weight (dict);
tt.dict = dict;