Change 'result is undefined' to 'has undefined behavior' (#1042)

Fixes #557.

Author: jensmaurer

source/containers.tex

@@ -4887,7 +4887,7 @@
 \tcode{[first, last)}
 is a valid range in
 \tcode{x}.
-The result is undefined if
+The program has undefined behavior if
 \tcode{position}
 is an iterator in the range
 \range{first}{last}.

source/numerics.tex

@@ -7006,7 +7006,7 @@
 \pnum
 If the value of an element in the left-hand side of a valarray assignment
 operator depends on the value of another element in that left-hand side,
-the resulting behavior is undefined.
+the behavior is undefined.
 \end{itemdescr}
 
 \rSec3[valarray.access]{\tcode{valarray} element access}
@@ -7333,7 +7333,7 @@
 \pnum
 If the value of an element in the left-hand side of a valarray compound
 assignment operator depends on the value of another element in that left
-hand side, the resulting behavior is undefined.
+hand side, the behavior is undefined.
 \end{itemdescr}
 
 \indexlibrarymember{operator*=}{valarray}%
@@ -8122,7 +8122,7 @@
 non-\tcode{const}
 version of
 \tcode{operator[](const gslice\&)},
-the resulting behavior is undefined.
+the behavior is undefined.
 \indextext{undefined}%
 
 \rSec3[gslice.cons]{\tcode{gslice} constructors}

source/special.tex

@@ -2018,7 +2018,7 @@
 \grammarterm{ctor-initializer})
 before all the
 \grammarterm{mem-initializer}{s}
-for base classes have completed, the result of the operation is undefined.
+for base classes have completed, the program has undefined behavior.
 \begin{example}
 
 \begin{codeblock}
@@ -2362,9 +2362,7 @@
 \tcode{typeid}
 refers to the object under construction or destruction and the static type of
 the operand is neither the constructor or destructor's class nor one of its
-bases, the result of
-\tcode{typeid}
-is undefined.
+bases, the behavior is undefined.
 
 \pnum
 \indextext{construction!dynamic cast and}%