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cppdraft/exec/get/env.md

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+[exec.get.env]
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+# 33 Execution control library [[exec]](./#exec)
+
+## 33.5 Queries [[exec.queries]](exec.queries#exec.get.env)
+
+### 33.5.4 execution​::​get_env [exec.get.env]
+
+[1](#1)
+
+[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/exec.tex#L906)
+
+execution​::​get_env is a customization point object[.](#1.sentence-1)
+
+For a subexpression o,execution​::​get_env(o) is expression-equivalent to:
+
+- [(1.1)](#1.1)
+
+  *MANDATE-NOTHROW*(*AS-CONST*(o).get_env()) if that expression is well-formed[.](#1.1.sentence-1)
+  *Mandates*: The type of the expression above satisfies[*queryable*](exec.queryable.concept#concept:queryable "33.2.2 queryable concept [exec.queryable.concept]") ([[exec.queryable]](exec.queryable "33.2 Queries and queryables"))[.](#1.1.sentence-2)
+
+- [(1.2)](#1.2)
+
+  Otherwise, env<>{}[.](#1.2.sentence-1)
+
+[2](#2)
+
+[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/exec.tex#L922)
+
+The value of get_env(o) shall be valid while o is valid[.](#2.sentence-1)
+
+[3](#3)
+
+[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/exec.tex#L925)
+
+[*Note [1](#note-1)*:
+
+When passed a sender object,get_env returns the sender's associated attributes[.](#3.sentence-1)
+
+When passed a receiver,get_env returns the receiver's associated execution environment[.](#3.sentence-2)
+
+— *end note*]