Skip to content

abs only works on signed integer scalar or vector #1282

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
kdashg merged 1 commit into from
Jan 19, 2021
Merged

abs only works on signed integer scalar or vector #1282

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
27 changes: 19 additions & 8 deletions wgsl/index.bs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -4773,14 +4773,25 @@ TODO: deduplicate these tables
<thead>
<tr><th>Precondition<th>Built-in<th>Description
</thead>
<tr algorithm="scalar case, abs">
<td>|T| is u32 or i32
<td class="nowrap">`abs(`|e|`:` |T| `) ->` |T|
<td>(GLSLstd450SAbs)
<tr algorithm="vector case, abs">
<td>|T| is u32 or i32
<td class="nowrap">`abs(`|e|`:` vec|N|<|T|> `) ->` vec|N|<|T|>
<td>(GLSLstd450SAbs)
<tr algorithm="scalar case, signed abs">
<td>
<td class="nowrap">`abs`(|e|: i32 ) -> i32
<td>The absolute value of |e|.<br>
(GLSLstd450SAbs)
<tr algorithm="vector case, signed abs">
<td>
<td class="nowrap">`abs`(|e| : vec|N|&lt;i32&gt; ) -> vec|N|&lt;i32&gt;
<td>Component-wise absolute value:
Component |i| of the result is `abs(`|e|`[`|i|`])`<br>
(GLSLstd450SAbs)
<tr algorithm="scalar case, unsigned abs">
<td>
<td class="nowrap">`abs`(|e| : u32 ) -> u32
<td>Result is |e|. This is provided for symmetry with `abs` for signed integers.
<tr algorithm="vector case, unsgined abs">
<td>
<td class="nowrap">`abs(`|e|`:` vec|N|&lt;u32&gt; `) ->` vec|N|&lt;u32&gt;
<td>Result is |e|. This is provided for symmetry with `abs` for signed integer vectors.
<tr algorithm="scalar case, unsigned clamp">
<td>|T| is u32
<td class="nowrap">`clamp(`|e1|`:` |T| `, `|e2|`:` |T|`, `|e3|`:` |T|`) ->` |T|
Expand Down