tmp/tmproyec350/{from.md → to.md}
RENAMED
|
@@ -21,11 +21,11 @@ available as a result of any call.
|
|
| 21 |
|
| 22 |
To make a write position available, the function reallocates (or
|
| 23 |
initially allocates) an array object with a sufficient number of
|
| 24 |
elements `n` to hold the current array object (if any), plus at least
|
| 25 |
one additional write position. How many additional write positions are
|
| 26 |
-
made available is otherwise unspecified.
|
| 27 |
pointer, the function calls `(*palloc)(n)` to allocate the new dynamic
|
| 28 |
array object. Otherwise, it evaluates the expression `new charT[n]`. In
|
| 29 |
either case, if the allocation fails, the function returns `EOF`.
|
| 30 |
Otherwise, it sets `allocated` in `strmode`.
|
| 31 |
|
|
@@ -35,10 +35,14 @@ address is `p`: If `pfree` is not a null pointer, the function calls
|
|
| 35 |
|
| 36 |
If `(strmode & dynamic) == 0`, or if `(strmode & frozen) != 0`, the
|
| 37 |
function cannot extend the array (reallocate it with greater length) to
|
| 38 |
make a write position available.
|
| 39 |
|
|
|
|
|
|
|
|
|
|
|
|
|
| 40 |
``` cpp
|
| 41 |
int_type pbackfail(int_type c = EOF) override;
|
| 42 |
```
|
| 43 |
|
| 44 |
Puts back the character designated by `c` to the input sequence, if
|
|
@@ -46,12 +50,12 @@ possible, in one of three ways:
|
|
| 46 |
|
| 47 |
- If `c != EOF`, if the input sequence has a putback position available,
|
| 48 |
and if `(char)c == gnext[-1]`, assigns `gnext - 1` to `gnext`. Returns
|
| 49 |
`c`.
|
| 50 |
- If `c != EOF`, if the input sequence has a putback position available,
|
| 51 |
-
and if `strmode & constant` is zero, assigns `c` to `*
|
| 52 |
-
|
| 53 |
- If `c == EOF` and if the input sequence has a putback position
|
| 54 |
available, assigns `gnext - 1` to `gnext`. Returns a value other than
|
| 55 |
`EOF`.
|
| 56 |
|
| 57 |
Returns `EOF` to indicate failure.
|
|
|
|
| 21 |
|
| 22 |
To make a write position available, the function reallocates (or
|
| 23 |
initially allocates) an array object with a sufficient number of
|
| 24 |
elements `n` to hold the current array object (if any), plus at least
|
| 25 |
one additional write position. How many additional write positions are
|
| 26 |
+
made available is otherwise unspecified. If `palloc` is not a null
|
| 27 |
pointer, the function calls `(*palloc)(n)` to allocate the new dynamic
|
| 28 |
array object. Otherwise, it evaluates the expression `new charT[n]`. In
|
| 29 |
either case, if the allocation fails, the function returns `EOF`.
|
| 30 |
Otherwise, it sets `allocated` in `strmode`.
|
| 31 |
|
|
|
|
| 35 |
|
| 36 |
If `(strmode & dynamic) == 0`, or if `(strmode & frozen) != 0`, the
|
| 37 |
function cannot extend the array (reallocate it with greater length) to
|
| 38 |
make a write position available.
|
| 39 |
|
| 40 |
+
*Recommended practice:* An implementation should consider `alsize` in
|
| 41 |
+
making the decision how many additional write positions to make
|
| 42 |
+
available.
|
| 43 |
+
|
| 44 |
``` cpp
|
| 45 |
int_type pbackfail(int_type c = EOF) override;
|
| 46 |
```
|
| 47 |
|
| 48 |
Puts back the character designated by `c` to the input sequence, if
|
|
|
|
| 50 |
|
| 51 |
- If `c != EOF`, if the input sequence has a putback position available,
|
| 52 |
and if `(char)c == gnext[-1]`, assigns `gnext - 1` to `gnext`. Returns
|
| 53 |
`c`.
|
| 54 |
- If `c != EOF`, if the input sequence has a putback position available,
|
| 55 |
+
and if `strmode & constant` is zero, assigns `c` to `*–gnext`. Returns
|
| 56 |
+
`c`.
|
| 57 |
- If `c == EOF` and if the input sequence has a putback position
|
| 58 |
available, assigns `gnext - 1` to `gnext`. Returns a value other than
|
| 59 |
`EOF`.
|
| 60 |
|
| 61 |
Returns `EOF` to indicate failure.
|