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@@ -290,7 +290,9 @@ an @def{error object}
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is propagated with information about the error.
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Lua itself only generates errors whose error object is a string,
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but programs can generate errors with
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-any value as the error object.
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+any value as the error object,
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+except @nil.
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+(Lua will change a @nil as error object to a string message.)
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It is up to the Lua program or its host to handle such error objects.
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For historical reasons,
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an error object is often called an @def{error message},
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@@ -8082,6 +8084,8 @@ multiple assignment:
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The default for @id{a2} is @id{a1}.
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The destination range can overlap with the source range.
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The number of elements to be moved must fit in a Lua integer.
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+If @id{f} is larger than @id{e},
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+nothing is moved.
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Returns the destination table @id{a2}.
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@@ -9402,6 +9406,11 @@ declare a local variable with the same name in the loop body.
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A chain of @id{__call} metamethods can have at most 15 objects.
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}
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+@item{
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+In an error, a @nil as the error object is replaced by a
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+string message.
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+}
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+
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}
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}
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