[#BloombergLP-balxml-ValidatingReader-addSchema]
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:mrdocs:

Associate the specified `location` with the XSD document in the specified `schema` stream. Return 0 on success and non‐zero on error. This method may be called more than once to add multiple location‐schema associations to a pre‐resolved schema cache. During XML validation, a reference to a schema with a specific location will be looked up in the schema cache. Only if this resolution fails, is the schema resolver used to find the external schema. (See `setResolver` in the `Reader` base class.) The effects of calling this method when the reader is already open is not specified and a derived class implementation may treat it as an error. The behavior is undefined unless `schema` is a repositionable stream (i.e., it must be possible to read from the stream, then seek to the beginning of the stream and read the same bytes again.)

== Synopsis

Declared in `<balxml_validatingreader.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
virtual
int
addSchema(
    char const* location,
    std::streambuf* schema) = 0;
----


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