diff options
| author | Kaz Kylheku <kaz@kylheku.com> | 2022-04-26 07:53:24 -0700 |
|---|---|---|
| committer | Kaz Kylheku <kaz@kylheku.com> | 2022-04-26 07:53:24 -0700 |
| commit | 5c834d64a58d7176ff246431074707f4bf0f2abf (patch) | |
| tree | 857b3bbe6a0152a3ff6ba421c618cd67863260f5 | |
| parent | 125d02c3c9b6a70ae43a6139ad9e83d1a6aa069a (diff) | |
| download | txr-5c834d64a58d7176ff246431074707f4bf0f2abf.tar.gz txr-5c834d64a58d7176ff246431074707f4bf0f2abf.tar.bz2 txr-5c834d64a58d7176ff246431074707f4bf0f2abf.zip | |
doc: FFI string types map null pointer to nil.
* txr.1: Document the existing behavior that the various
FFI string types map between the null pointer and the nil
object.
| -rw-r--r-- | txr.1 | 10 |
1 files changed, 7 insertions, 3 deletions
@@ -79199,7 +79199,9 @@ to close the stream. These FFI types correspond to the C pointer type .codn "char *" , providing automatic conversion between Lisp strings and null-terminated -C strings. +C strings. The null pointer corresponds to the +.B nil +symbol. The related types .codn bstr , @@ -79320,7 +79322,8 @@ C strings, like the family, and the family members have memory management semantics similar to their .code str -counterparts. +counterparts. Likewise, under these types also, the null pointer corresponds to +.codn nil . The .code b @@ -79364,7 +79367,8 @@ The family members of .code wstr have memory management semantics similar to their .code str -counterparts, +counterparts, Likewise, under these types also, the null pointer corresponds to +.codn nil . Note: because wide characters do not require UTF-8 conversion, the .code wstr |