Use 'subclause', not 'section'.

The ISO Directives, Part 2, prescribe the term 'subclause'.

Also remove overview sub-headings for non-normative
subclause overview text.

Fixes #307.

Author: jensmaurer

source/algorithms.tex

@@ -1226,7 +1226,7 @@
 \rSec1[algorithms.parallel]{Parallel algorithms}
 
 \pnum
-This section describes components that \Cpp programs may use to perform
+This subclause describes components that \Cpp programs may use to perform
 operations on containers and other sequences in parallel.
 
 \rSec2[algorithms.parallel.defns]{Terms and definitions}
@@ -3937,7 +3937,7 @@
 \rSec2[alg.binary.search]{Binary search}
 
 \pnum
-All of the algorithms in this section are versions of binary search
+All of the algorithms in this subclause are versions of binary search
 and assume that the sequence being searched is partitioned with respect to
 an expression formed by binding the search key to an argument of the
 implied or explicit comparison function.
@@ -4496,7 +4496,7 @@
 \rSec2[alg.set.operations]{Set operations on sorted structures}
 
 \pnum
-This section defines all the basic set operations on sorted structures.
+This subclause defines all the basic set operations on sorted structures.
 They also work with
 \tcode{multiset}s\iref{multiset}
 containing multiple copies of equivalent elements.

source/atomics.tex

@@ -1413,7 +1413,7 @@
 \rSec1[atomics.fences]{Fences}
 
 \pnum
-This section introduces synchronization primitives called \term{fences}. Fences can have
+This subclause introduces synchronization primitives called \term{fences}. Fences can have
 acquire semantics, release semantics, or both. A fence with acquire semantics is called
 an \term{acquire fence}. A fence with release semantics is called a \term{release
 fence}.

source/back.tex

@@ -22,8 +22,8 @@ \chapter{Bibliography}
 
 \clearpage
 \renewcommand{\glossaryname}{Cross references}
-\renewcommand{\preglossaryhook}{This annex lists each section label and the
-corresponding section number and page number, in alphabetical order by label.\\}
+\renewcommand{\preglossaryhook}{This annex lists each clause or subclause label and the
+corresponding clause or subclause number and page number, in alphabetical order by label.\\}
 \twocolglossary
 \renewcommand{\leftmark}{\glossaryname}
 {
@@ -34,7 +34,7 @@ \chapter{Bibliography}
 \clearpage
 \input{xrefdelta}
 \renewcommand{\glossaryname}{Cross references from ISO \CppXVII}
-\renewcommand{\preglossaryhook}{All section labels from
+\renewcommand{\preglossaryhook}{All clause or subclause labels from
 ISO \CppXVII (ISO/IEC 14882:2017, \doccite{Programming Languages --- \Cpp})
 are present in this document, with the exceptions described below.\\}
 \renewcommand{\leftmark}{\glossaryname}
@@ -71,7 +71,7 @@ \chapter{Bibliography}
 }
 
 \clearpage
-\renewcommand{\preindexhook}{The entries in this section are rough descriptions; exact
+\renewcommand{\preindexhook}{The entries in this index are rough descriptions; exact
 specifications are at the indicated page in the general text.\\}
 \renewcommand{\indexname}{Index of implementation-defined behavior}
 \renewcommand{\leftmark}{\indexname}

source/basic.tex

@@ -3168,7 +3168,7 @@
 \item the value returned by a call to the \Cpp standard library implementation of
 \tcode{::operator new(std::\brk{}size_t)} or
 \tcode{::operator new(std::size_t, std::align_val_t)}%
-;\footnote{This section does not impose restrictions
+;\footnote{This subclause does not impose restrictions
 on indirection through pointers to memory not allocated by \tcode{::operator new}. This
 maintains the ability of many \Cpp implementations to use binary libraries and
 components written in other languages. In particular, this applies to C binaries,
@@ -3496,7 +3496,7 @@
 \end{example}
 
 \pnum
-In this section, ``before'' and ``after'' refer to the ``happens before''
+In this subclause, ``before'' and ``after'' refer to the ``happens before''
 relation\iref{intro.multithread}. \begin{note} Therefore, undefined behavior results
 if an object that is being constructed in one thread is referenced from another
 thread without adequate synchronization. \end{note}%
@@ -3824,7 +3824,7 @@
 unsigned integer types are collectively called the
 \defnx{extended integer types}{extended integer type}.
 The signed and unsigned integer types shall satisfy
-the constraints given in the C standard, section 5.2.4.2.1.
+the constraints given in the C standard, subclause 5.2.4.2.1.
 
 \pnum
 \indextext{arithmetic!\idxcode{unsigned}}%

source/containers.tex

@@ -7507,7 +7507,7 @@
 An \tcode{unordered_map} satisfies all of the requirements of a container, of an unordered associative container, and of an allocator-aware container (Table~\ref{tab:containers.allocatoraware}). It provides the operations described in the preceding requirements table for unique keys; that is, an \tcode{unordered_map} supports the \tcode{a_uniq} operations in that table, not the \tcode{a_eq} operations. For an \tcode{unordered_map<Key, T>} the \tcode{key type} is \tcode{Key}, the mapped type is \tcode{T}, and the value type is \tcode{pair<const Key, T>}.
 
 \pnum
-This section only describes operations on \tcode{unordered_map} that
+This subclause only describes operations on \tcode{unordered_map} that
 are not described in one of the requirement tables, or for which there
 is additional semantic information.
 
@@ -8067,7 +8067,7 @@
 mapped type is \tcode{T}, and the value type is \tcode{pair<const Key, T>}.
 
 \pnum
-This section only describes operations on \tcode{unordered_multimap}
+This subclause only describes operations on \tcode{unordered_multimap}
 that are not described in one of the requirement tables, or for which
 there is additional semantic information.
 
@@ -8411,7 +8411,7 @@
 An \tcode{unordered_set} satisfies all of the requirements of a container, of an unordered associative container, and of an allocator-aware container (Table~\ref{tab:containers.allocatoraware}). It provides the operations described in the preceding requirements table for unique keys; that is, an \tcode{unordered_set} supports the \tcode{a_uniq} operations in that table, not the \tcode{a_eq} operations. For an \tcode{unordered_set<Key>} the \tcode{key type} and the value type are both \tcode{Key}. The \tcode{iterator} and \tcode{const_iterator} types are both constant iterator types. It is unspecified whether they are the same type.
 
 \pnum
-This section only describes operations on \tcode{unordered_set} that
+This subclause only describes operations on \tcode{unordered_set} that
 are not described in one of the requirement tables, or for which there
 is additional semantic information.
 
@@ -8714,7 +8714,7 @@
 constant iterator types. It is unspecified whether they are the same type.
 
 \pnum
-This section only describes operations on \tcode{unordered_multiset} that
+This subclause only describes operations on \tcode{unordered_multiset} that
 are not described in one of the requirement tables, or for which there
 is additional semantic information.
 

source/declarations.tex

@@ -977,7 +977,7 @@
 point of call is to be preferred to the usual function call mechanism.
 An implementation is not required to perform this inline substitution at
 the point of call; however, even if this inline substitution is omitted,
-the other rules for inline functions specified in this section shall
+the other rules for inline functions specified in this subclause shall
 still be respected.
 
 \pnum
@@ -1110,7 +1110,7 @@
 \ref{class},
 and
 \ref{temp.res}, respectively. The remaining
-\grammarterm{type-specifier}{s} are discussed in the rest of this section.
+\grammarterm{type-specifier}{s} are discussed in the rest of this subclause.
 \end{note}
 
 \rSec3[dcl.type.cv]{The \grammarterm{cv-qualifier}{s}}%
@@ -1609,7 +1609,7 @@
 
 \pnum
 A program that uses \tcode{auto} or \tcode{decltype(auto)} in a context not
-explicitly allowed in this section is ill-formed.
+explicitly allowed in this subclause is ill-formed.
 
 \pnum
 If the \grammarterm{init-declarator-list} contains more than one

source/declarators.tex

@@ -3016,7 +3016,7 @@
 to convert the expression, the program is ill-formed.
 \begin{note} If an initializer is itself an initializer list,
 the element is list-initialized, which will result in a recursive application
-of the rules in this section if the element is an aggregate. \end{note}
+of the rules in this subclause if the element is an aggregate. \end{note}
 \end{itemize}
 \begin{example}
 \begin{codeblock}
@@ -3893,7 +3893,7 @@
 
 \item Otherwise, if \tcode{T} is a character array and the initializer list has a
 single element that is an appropriately-typed string literal\iref{dcl.init.string},
-initialization is performed as described in that section.
+initialization is performed as described in that subclause.
 
 \item Otherwise, if \tcode{T} is an aggregate, aggregate initialization is
 performed\iref{dcl.init.aggr}.

source/diagnostics.tex

@@ -939,7 +939,7 @@
 Classes may be derived from \tcode{error_category} to support
 categories of errors in addition to those defined in this document.
 Such classes shall behave as specified in this
-subclause. \begin{note} \tcode{error_category} objects are
+subclause~\ref{syserr.errcat}. \begin{note} \tcode{error_category} objects are
 passed by reference, and two such objects
 are equal if they have the same address. This means that applications using
 custom \tcode{error_category} types should create a single object of each

source/exceptions.tex

@@ -180,7 +180,7 @@
 \end{example}
 
 \pnum
-In this section, ``before'' and ``after'' refer to the
+In this Clause, ``before'' and ``after'' refer to the
 ``sequenced before'' relation\iref{intro.execution}.
 
 \rSec1[except.throw]{Throwing an exception}%
@@ -362,7 +362,7 @@
 \indextext{unwinding!stack}%
 As control passes from the point where an exception is thrown
 to a handler,
-destructors are invoked by a process, specified in this section, called
+destructors are invoked by a process, specified in this subclause, called
 \defn{stack unwinding}.
 
 \pnum

source/expressions.tex

@@ -2181,7 +2181,7 @@
 it is replaced by the return type
 of the function selected by overload resolution
 for class template deduction\iref{over.match.class.deduct}
-for the remainder of this section.
+for the remainder of this subclause.
 
 \pnum
 If the initializer is a parenthesized single expression,
@@ -2683,7 +2683,7 @@
 the result refers to the object or the specified base class subobject
 thereof; otherwise, the lvalue-to-rvalue conversion\iref{conv.lval}
 is applied to the bit-field and the resulting prvalue is used as the
-\grammarterm{expression} of the \tcode{static_cast} for the remainder of this section.
+\grammarterm{expression} of the \tcode{static_cast} for the remainder of this subclause.
 If \tcode{T2} is an inaccessible\iref{class.access} or
 ambiguous\iref{class.member.lookup} base class of \tcode{T1},
 a program that necessitates such a cast is ill-formed.
@@ -3025,7 +3025,7 @@
 
 \pnum
 \begin{note}
-Subject to the restrictions in this section, an expression may be cast
+Subject to the restrictions in this subclause, an expression may be cast
 to its own type using a \tcode{const_cast} operator.
 \end{note}
 
@@ -4013,7 +4013,7 @@
 If the operand has a class type, the operand is converted to a pointer
 type by calling the above-mentioned conversion function, and the
 converted operand is used in place of the original operand for the
-remainder of this section.
+remainder of this subclause.
 In the first alternative
 (\defnx{delete object}{object!delete}), the value of the operand of \tcode{delete} may
 be a null pointer value, a pointer to a non-array object
@@ -5006,7 +5006,7 @@
 of the same value category and
 of types \cvqual{cv1} \tcode{T} and \cvqual{cv2} \tcode{T}, respectively,
 the operands are considered to be of type \cvqual{cv} \tcode{T}
-for the remainder of this section,
+for the remainder of this subclause,
 where \cvqual{cv} is the union of \cvqual{cv1} and \cvqual{cv2}.
 
 \pnum
@@ -5063,7 +5063,7 @@
 Otherwise, if exactly one conversion sequence can be formed,
 that conversion is applied to the chosen operand
 and the converted operand is used in place of the original operand for
-the remainder of this section.
+the remainder of this subclause.
 \begin{note}
 The conversion might be ill-formed even if an implicit conversion
 sequence could be formed.
@@ -5083,7 +5083,7 @@
 If the overload resolution fails, the program is ill-formed. Otherwise,
 the conversions thus determined are applied, and the converted operands
 are used in place of the original operands for the remainder of this
-section.
+subclause.
 
 \pnum
 Lvalue-to-rvalue\iref{conv.lval}, array-to-pointer\iref{conv.array},

source/future.tex

@@ -11,7 +11,7 @@
 is defined as:
 Normative for the current edition of this International Standard,
 but having been identified as a candidate for removal from future revisions.
-An implementation may declare library names and entities described in this section with the
+An implementation may declare library names and entities described in this Clause with the
 \tcode{deprecated} attribute\iref{dcl.attr.deprecated}.
 
 \rSec1[depr.static_constexpr]{Redeclaration of \tcode{static constexpr} data members}

source/intro.tex

@@ -1102,7 +1102,7 @@
 and they are not potentially concurrent\iref{intro.multithread},
 the behavior is undefined.
 \begin{note}
-The next section imposes similar, but more complex restrictions on
+The next subclause imposes similar, but more complex restrictions on
 potentially concurrent computations.
 \end{note}
 
@@ -1201,7 +1201,7 @@
 initial value of the object, a value assigned to the object by \placeholder{T}, or a
 value assigned to the object by another thread, according to the rules below.
 \begin{note} In some cases, there may instead be undefined behavior. Much of this
-section is motivated by the desire to support atomic operations with explicit
+subclause is motivated by the desire to support atomic operations with explicit
 and detailed visibility constraints. However, it also implicitly supports a
 simpler view for more restricted programs. \end{note}
 

source/iostreams.tex

@@ -8493,7 +8493,7 @@
 \pnum
 In order to support file I/O and multibyte/wide character conversion,
 conversions are performed using members of a facet, referred to as
-\tcode{a_codecvt} in following sections, obtained as if by
+\tcode{a_codecvt} in following subclauses, obtained as if by
 
 \begin{codeblock}
 const codecvt<charT, char, typename traits::state_type>& a_codecvt =
@@ -10734,7 +10734,7 @@
 
 \pnum
 \begin{note}
-The format conversions described in this section
+The format conversions described in this subclause
 are not applied on POSIX-based operating systems
 because on these systems:
 \begin{itemize}

source/iterators.tex

@@ -3069,7 +3069,7 @@
 \rSec3[istreambuf.iterator.cons]{\tcode{istreambuf_iterator} constructors}
 
 \pnum
-For each \tcode{istreambuf_iterator} constructor in this section,
+For each \tcode{istreambuf_iterator} constructor in this subclause,
 an end-of-stream iterator is constructed if and only if
 the exposition-only member \tcode{sbuf_} is initialized with a null pointer value.
 

source/lib-intro.tex

@@ -1327,7 +1327,7 @@
 \rSec3[using.overview]{Overview}
 
 \pnum
-This section describes how a \Cpp program gains access to the facilities of the
+Subclause \ref{using} describes how a \Cpp program gains access to the facilities of the
 \Cpp standard library. \ref{using.headers} describes effects during translation
 phase 4, while~\ref{using.linkage} describes effects during phase
 8\iref{lex.phases}.
@@ -2151,7 +2151,7 @@
 \rSec3[constraints.overview]{Overview}
 
 \pnum
-This section describes restrictions on \Cpp programs that use the facilities of
+Subclause \ref{constraints} describes restrictions on \Cpp programs that use the facilities of
 the \Cpp standard library. The following subclauses specify constraints on the
 program's use of namespaces\iref{namespace.std}, its use of various reserved
 names\iref{reserved.names}, its use of headers\iref{alt.headers}, its use of
@@ -2654,7 +2654,7 @@
 \rSec3[conforming.overview]{Overview}
 
 \pnum
-This section describes the constraints upon, and latitude of, implementations of the \Cpp standard library.
+Subclause \ref{conforming} describes the constraints upon, and latitude of, implementations of the \Cpp standard library.
 
 \pnum
 An implementation's use of headers is discussed in~\ref{res.on.headers}, its use
@@ -2803,7 +2803,7 @@
 \rSec3[res.on.data.races]{Data race avoidance}
 
 \pnum
-This section specifies requirements that implementations shall meet to prevent data
+This subclause specifies requirements that implementations shall meet to prevent data
 races\iref{intro.multithread}.
 Every standard library function shall meet each requirement unless otherwise specified.
 Implementations may prevent data races in cases other than those specified below.