#848 Arithmetic fails in 1.0 mode

[Michael Kay]

In backwards compatibility mode (that is when the stylesheet specifies version="1.0" an arithmetic expression will fail with a type error if one of the arguments has a statically inferred type of "numeric". An example of an expression that has such a type is a call on sum() when the argument is a path expression (in Saxon-B, where it known that the nodes are all untypedAtomic). The failure is typically a compile time error:

XPTY0004: Arithmetic operator is not defined for arguments of types (numeric, xs:double)

This applies to 9.0 and 9.1. A patch for both these releases is being placed in Subversion.

Test case backwards073 added.

[Michael Kay]

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Fixed in 9.0.0.8 and 9.1.0.2