diff options
Diffstat (limited to 'gcc/vec.h')
| -rw-r--r-- | gcc/vec.h | 100 |
1 files changed, 99 insertions, 1 deletions
diff --git a/gcc/vec.h b/gcc/vec.h index 93a432df839..321b13fc2ce 100644 --- a/gcc/vec.h +++ b/gcc/vec.h @@ -190,6 +190,13 @@ along with GCC; see the file COPYING3. If not see #define VEC_iterate(T,V,I,P) (VEC_OP(T,base,iterate)(VEC_BASE(V),I,&(P))) +/* Convenience macro for reverse iteration. */ + +#define FOR_EACH_VEC_ELT_REVERSE(T,V,I,P) \ + for (I = VEC_length (T, (V)) - 1; \ + VEC_iterate (T, (V), (I), (P)); \ + (I)--) + /* Allocate new vector. VEC(T,A) *VEC_T_A_alloc(int reserve); @@ -259,6 +266,32 @@ along with GCC; see the file COPYING3. If not see #define VEC_reserve_exact(T,A,V,R) \ (VEC_OP(T,A,reserve_exact)(&(V),R VEC_CHECK_INFO MEM_STAT_INFO)) +/* Copy elements with no reallocation + void VEC_T_splice (VEC(T) *dst, VEC(T) *src); // Integer + void VEC_T_splice (VEC(T) *dst, VEC(T) *src); // Pointer + void VEC_T_splice (VEC(T) *dst, VEC(T) *src); // Object + + Copy the elements in SRC to the end of DST as if by memcpy. DST and + SRC need not be allocated with the same mechanism, although they most + often will be. DST is assumed to have sufficient headroom + available. */ + +#define VEC_splice(T,DST,SRC) \ + (VEC_OP(T,base,splice)(VEC_BASE(DST), VEC_BASE(SRC) VEC_CHECK_INFO)) + +/* Copy elements with reallocation + void VEC_T_safe_splice (VEC(T,A) *&dst, VEC(T) *src); // Integer + void VEC_T_safe_splice (VEC(T,A) *&dst, VEC(T) *src); // Pointer + void VEC_T_safe_splice (VEC(T,A) *&dst, VEC(T) *src); // Object + + Copy the elements in SRC to the end of DST as if by memcpy. DST and + SRC need not be allocated with the same mechanism, although they most + often will be. DST need not have sufficient headroom and will be + reallocated if needed. */ + +#define VEC_safe_splice(T,A,DST,SRC) \ + (VEC_OP(T,A,safe_splice)(&(DST), VEC_BASE(SRC) VEC_CHECK_INFO MEM_STAT_INFO)) + /* Push object with no reallocation T *VEC_T_quick_push (VEC(T) *v, T obj); // Integer T *VEC_T_quick_push (VEC(T) *v, T obj); // Pointer @@ -391,7 +424,7 @@ along with GCC; see the file COPYING3. If not see void VEC_T_block_remove (VEC(T) *v, unsigned ix, unsigned len); Remove LEN elements starting at the IXth. Ordering is retained. - This is an O(1) operation. */ + This is an O(N) operation due to memmove. */ #define VEC_block_remove(T,V,I,L) \ (VEC_OP(T,base,block_remove)(VEC_BASE(V),I,L VEC_CHECK_INFO)) @@ -589,6 +622,19 @@ static inline int VEC_OP (T,base,space) \ return vec_ ? vec_->alloc - vec_->num >= (unsigned)alloc_ : !alloc_; \ } \ \ +static inline void VEC_OP(T,base,splice) \ + (VEC(T,base) *dst_, VEC(T,base) *src_ VEC_CHECK_DECL) \ +{ \ + if (src_) \ + { \ + unsigned len_ = src_->num; \ + VEC_ASSERT (dst_->num + len_ <= dst_->alloc, "splice", T, base); \ + \ + memcpy (&dst_->vec[dst_->num], &src_->vec[0], len_ * sizeof (T)); \ + dst_->num += len_; \ + } \ +} \ + \ static inline T *VEC_OP (T,base,quick_push) \ (VEC(T,base) *vec_, T obj_ VEC_CHECK_DECL) \ { \ @@ -796,6 +842,19 @@ static inline void VEC_OP (T,A,safe_grow_cleared) \ sizeof (T) * (size_ - oldsize)); \ } \ \ +static inline void VEC_OP(T,A,safe_splice) \ + (VEC(T,A) **dst_, VEC(T,base) *src_ VEC_CHECK_DECL MEM_STAT_DECL) \ +{ \ + if (src_) \ + { \ + VEC_OP (T,A,reserve_exact) (dst_, src_->num \ + VEC_CHECK_PASS MEM_STAT_INFO); \ + \ + VEC_OP (T,base,splice) (VEC_BASE (*dst_), src_ \ + VEC_CHECK_PASS); \ + } \ +} \ + \ static inline T *VEC_OP (T,A,safe_push) \ (VEC(T,A) **vec_, T obj_ VEC_CHECK_DECL MEM_STAT_DECL) \ { \ @@ -881,6 +940,19 @@ static inline int VEC_OP (T,base,space) \ return vec_ ? vec_->alloc - vec_->num >= (unsigned)alloc_ : !alloc_; \ } \ \ +static inline void VEC_OP(T,base,splice) \ + (VEC(T,base) *dst_, VEC(T,base) *src_ VEC_CHECK_DECL) \ +{ \ + if (src_) \ + { \ + unsigned len_ = src_->num; \ + VEC_ASSERT (dst_->num + len_ <= dst_->alloc, "splice", T, base); \ + \ + memcpy (&dst_->vec[dst_->num], &src_->vec[0], len_ * sizeof (T)); \ + dst_->num += len_; \ + } \ +} \ + \ static inline T *VEC_OP (T,base,quick_push) \ (VEC(T,base) *vec_, const T *obj_ VEC_CHECK_DECL) \ { \ @@ -1084,6 +1156,19 @@ static inline void VEC_OP (T,A,safe_grow_cleared) \ sizeof (T) * (size_ - oldsize)); \ } \ \ +static inline void VEC_OP(T,A,safe_splice) \ + (VEC(T,A) **dst_, VEC(T,base) *src_ VEC_CHECK_DECL MEM_STAT_DECL) \ +{ \ + if (src_) \ + { \ + VEC_OP (T,A,reserve_exact) (dst_, src_->num \ + VEC_CHECK_PASS MEM_STAT_INFO); \ + \ + VEC_OP (T,base,splice) (VEC_BASE (*dst_), src_ \ + VEC_CHECK_PASS); \ + } \ +} \ + \ static inline T *VEC_OP (T,A,safe_push) \ (VEC(T,A) **vec_, const T *obj_ VEC_CHECK_DECL MEM_STAT_DECL) \ { \ @@ -1188,6 +1273,19 @@ static inline void VEC_OP (T,A,safe_grow_cleared) \ sizeof (T) * (size_ - oldsize)); \ } \ \ +static inline void VEC_OP(T,A,safe_splice) \ + (VEC(T,A) **dst_, VEC(T,base) *src_ VEC_CHECK_DECL MEM_STAT_DECL) \ +{ \ + if (src_) \ + { \ + VEC_OP (T,A,reserve_exact) (dst_, src_->num \ + VEC_CHECK_PASS MEM_STAT_INFO); \ + \ + VEC_OP (T,base,splice) (VEC_BASE (*dst_), src_ \ + VEC_CHECK_PASS); \ + } \ +} \ + \ static inline T *VEC_OP (T,A,safe_push) \ (VEC(T,A) **vec_, const T obj_ VEC_CHECK_DECL MEM_STAT_DECL) \ { \ |