Init

2025-10-25 03:02:53 +03:00
commit 043225d523
3416 changed files with 681196 additions and 0 deletions
--- a/cppdraft/exec/get/fwd/progress.md
+++ b/cppdraft/exec/get/fwd/progress.md
@@ -0,0 +1,53 @@
+[exec.get.fwd.progress]
+
+# 33 Execution control library [[exec]](./#exec)
+
+## 33.5 Queries [[exec.queries]](exec.queries#exec.get.fwd.progress)
+
+### 33.5.8 execution::get_forward_progress_guarantee [exec.get.fwd.progress]
+
+namespace std::execution {enum class [forward_progress_guarantee](#lib:forward_progress_guarantee "33.5.8 execution::get_forward_progress_guarantee [exec.get.fwd.progress]") { concurrent,
+ parallel,
+ weakly_parallel };}
+
+[1](#1)
+
+[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/exec.tex#L1001)
+
+get_forward_progress_guarantee asks a scheduler about
+the forward progress guarantee of execution agents
+created by that scheduler's associated execution resource ([[intro.progress]](intro.progress "6.10.2.3 Forward progress"))[.](#1.sentence-1)
+
+[2](#2)
+
+[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/exec.tex#L1006)
+
+The name get_forward_progress_guarantee denotes a query object[.](#2.sentence-1)
+
+For a subexpression sch, let Sch be decltype((sch))[.](#2.sentence-2)
+
+If Sch does not satisfy [scheduler](exec.sched#concept:scheduler "33.6 Schedulers [exec.sched]"),get_forward_progress_guarantee is ill-formed[.](#2.sentence-3)
+
+Otherwise,get_forward_progress_guarantee(sch) is expression-equivalent to:
+
+- [(2.1)](#2.1)
+
+  *MANDATE-NOTHROW*(*AS-CONST*(sch).query(get_forward_progress_guarantee)),
+if that expression is well-formed[.](#2.1.sentence-1)
+  *Mandates*: The type of the expression above is forward_progress_guarantee[.](#2.1.sentence-2)
+
+- [(2.2)](#2.2)
+
+  Otherwise, forward_progress_guarantee::weakly_parallel[.](#2.2.sentence-1)
+
+[3](#3)
+
+[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/exec.tex#L1024)
+
+If get_forward_progress_guarantee(sch) for some scheduler sch returns forward_progress_guarantee::concurrent,
+all execution agents created by that scheduler's associated execution resource
+shall provide the concurrent forward progress guarantee[.](#3.sentence-1)
+
+If it returns forward_progress_guarantee::parallel,
+all such execution agents
+shall provide at least the parallel forward progress guarantee[.](#3.sentence-2)