void *vec[1];
};
-/* Ensure there are at least RESERVE free slots in VEC, if RESERVE !=
- ~0u. If RESERVE == ~0u increase the current allocation
- exponentially. VEC can be NULL, to create a new vector. */
+/* Ensure there are at least RESERVE free slots in VEC, if RESERVE >=
+ 0. If RESERVE < 0 increase the current allocation exponentially.
+ VEC can be NULL, to create a new vector. */
void *
-vec_p_reserve (void *vec, size_t reserve MEM_STAT_DECL)
+vec_p_reserve (void *vec, int reserve MEM_STAT_DECL)
{
return vec_o_reserve (vec, reserve,
offsetof (struct vec_prefix, vec), sizeof (void *)
PASS_MEM_STAT);
}
-/* Ensure there are at least RESERVE free slots in VEC, if RESERVE !=
- ~0u. If RESERVE == ~0u, increase the current allocation
- exponentially. VEC can be NULL, in which case a new vector is
- created. The vector's trailing array is at VEC_OFFSET offset and
- consistes of ELT_SIZE sized elements. */
+/* Ensure there are at least RESERVE free slots in VEC, if RESERVE >=
+ 0. If RESERVE < 0, increase the current allocation exponentially.
+ VEC can be NULL, in which case a new vector is created. The
+ vector's trailing array is at VEC_OFFSET offset and consistes of
+ ELT_SIZE sized elements. */
void *
-vec_o_reserve (void *vec, size_t reserve, size_t vec_offset, size_t elt_size
+vec_o_reserve (void *vec, int reserve, size_t vec_offset, size_t elt_size
MEM_STAT_DECL)
{
struct vec_prefix *pfx = vec;
- size_t alloc;
+ size_t alloc = pfx ? pfx->num : 0;
- if (reserve + 1)
- alloc = (pfx ? pfx->num : 0) + reserve;
+ if (reserve >= 0)
+ alloc += reserve;
+ else if (alloc)
+ alloc *= 2;
else
- alloc = pfx ? pfx->alloc * 2 : 4;
+ alloc = 4;
+
+ if (pfx && pfx->alloc >= alloc)
+ abort ();
- if (!pfx || pfx->alloc < alloc)
- {
- vec = ggc_realloc_stat (vec, vec_offset + alloc * elt_size
- PASS_MEM_STAT);
- ((struct vec_prefix *)vec)->alloc = alloc;
- if (!pfx)
- ((struct vec_prefix *)vec)->num = 0;
- }
+ vec = ggc_realloc_stat (vec, vec_offset + alloc * elt_size PASS_MEM_STAT);
+ ((struct vec_prefix *)vec)->alloc = alloc;
+ if (!pfx)
+ ((struct vec_prefix *)vec)->num = 0;
return vec;
}
void
vec_assert_fail (const char *op, const char *struct_name,
- const char *file, size_t line, const char *function)
+ const char *file, unsigned int line, const char *function)
{
internal_error ("vector %s %s domain error, in %s at %s:%u",
- struct_name, op, function, function,
- trim_filename (file), line);
+ struct_name, op, function, trim_filename (file), line);
}
#endif