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runtime(doc): update develop assumptions

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closes: #17892

Signed-off-by: Damien Lejay <damien@lejay.be>
Signed-off-by: Christian Brabandt <cb@256bit.org>
This commit is contained in:
Damien Lejay
2025-08-08 12:51:23 +02:00
committed by Christian Brabandt
parent 04c9e78cd3
commit 46ec899026
1 changed files with 9 additions and 8 deletions
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17
runtime/doc/develop.txt
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@@ -1,4 +1,4 @@
*develop.txt* For Vim version 9.1. Last change: 2025 Jul 22
*develop.txt* For Vim version 9.1. Last change: 2025 Aug 08
VIM REFERENCE MANUAL by Bram Moolenaar
@@ -291,8 +291,8 @@ initialized from words listed in COMMON items in the affix file, so that it
also works when starting a new file.
This isn't ideal, because the longer Vim is running the higher the counts
become. But in practice it is a noticeable improvement over not using the word
count.
become. But in practice it is a noticeable improvement over not using the
word count.
==============================================================================
3. Assumptions *design-assumptions*
@@ -338,7 +338,8 @@ Therefore, the latest ISO C standard we follow is:
`C95` (ISO/IEC 9899:1990/AMD1:1995)
In addition, the following two `C99` features are explicitly allowed:
In addition, the following `C99` features are explicitly allowed:
– logical lines may contain up to 4095 characters;
– `//` comments, as required by |style-comments|;
– the `_Bool` type.
@@ -348,11 +349,11 @@ platform.
SIZE OF VARIABLES *assumptions-variables*
char 8-bit signed
We follow POSIX.1‑2001 (SUSv3) for type sizes, which in practice means:
char_u 8-bit unsigned
int 32- or 64-bit signed (16-bit possible on legacy systems)
unsigned 32- or 64-bit unsigned
long at least 32-bit signed (large enough to hold a pointer)
int ≥ 32-bit signed
unsigned ≥ 32-bit unsigned
==============================================================================