Added has_value()

This commit is contained in:
Andrzej Krzemienski
2018-03-24 00:04:15 +01:00
parent 33c7a6aa2b
commit 5182f7f30f
49 changed files with 119 additions and 59 deletions

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@ -3,7 +3,7 @@
<meta http-equiv="Content-Type" content="text/html; charset=US-ASCII">
<title>The Interface</title>
<link rel="stylesheet" href="../../../../../../../doc/src/boostbook.css" type="text/css">
<meta name="generator" content="DocBook XSL Stylesheets V1.78.1">
<meta name="generator" content="DocBook XSL Stylesheets Vsnapshot">
<link rel="home" href="../../../index.html" title="Boost.Optional">
<link rel="up" href="../design_overview.html" title="Design Overview">
<link rel="prev" href="the_semantics.html" title="The semantics">

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@ -3,7 +3,7 @@
<meta http-equiv="Content-Type" content="text/html; charset=US-ASCII">
<title>The semantics</title>
<link rel="stylesheet" href="../../../../../../../doc/src/boostbook.css" type="text/css">
<meta name="generator" content="DocBook XSL Stylesheets V1.78.1">
<meta name="generator" content="DocBook XSL Stylesheets Vsnapshot">
<link rel="home" href="../../../index.html" title="Boost.Optional">
<link rel="up" href="../design_overview.html" title="Design Overview">
<link rel="prev" href="../design_overview.html" title="Design Overview">