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docs: remove obsolete references to byteptr/charptr, use &byte/&char instead

pull/9701/head
Delyan Angelov 2021-04-12 15:58:26 +03:00
parent 19e4f5ec73
commit 6b8585daea
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1 changed files with 7 additions and 7 deletions
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doc/docs.md
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@ -414,7 +414,7 @@ rune // represents a Unicode code point
f32 f64 f32 f64
byteptr, voidptr, charptr, size_t // these are mostly used for C interoperability voidptr, size_t // these are mostly used for C interoperability
any // similar to C's void* and Go's interface{} any // similar to C's void* and Go's interface{}
``` ```
@ -1570,7 +1570,7 @@ For example, here's the `string` type defined in the `builtin` module:
```v ignore ```v ignore
struct string { struct string {
str byteptr str &byte
pub: pub:
len int len int
} }
@ -3580,8 +3580,8 @@ Another example, demonstrating passing structs from C to V and back again:
### C types ### C types
Ordinary zero terminated C strings can be converted to V strings with Ordinary zero terminated C strings can be converted to V strings with
`unsafe { charptr(cstring).vstring() }` or if you know their length already with `unsafe { &char(cstring).vstring() }` or if you know their length already with
`unsafe { charptr(cstring).vstring_with_len(len) }`. `unsafe { &char(cstring).vstring_with_len(len) }`.
NB: The .vstring() and .vstring_with_len() methods do NOT create a copy of the `cstring`, NB: The .vstring() and .vstring_with_len() methods do NOT create a copy of the `cstring`,
so you should NOT free it after calling the method `.vstring()`. so you should NOT free it after calling the method `.vstring()`.
@ -3594,9 +3594,9 @@ These can be converted to V strings with `string_from_wide(&u16(cwidestring))` .
V has these types for easier interoperability with C: V has these types for easier interoperability with C:
- `voidptr` for C's `void*`, - `voidptr` for C's `void*`,
- `byteptr` for C's `byte*` and - `&byte` for C's `byte*` and
- `charptr` for C's `char*`. - `&char` for C's `char*`.
- `&charptr` for C's `char**` - `&&char` for C's `char**`
To cast a `voidptr` to a V reference, use `user := &User(user_void_ptr)`. To cast a `voidptr` to a V reference, use `user := &User(user_void_ptr)`.