Header-only C++ library for JSON Schema validation

 Valijson is a header-only JSON Schema validation library for C++11.
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 Valijson provides a simple validation API that allows you to load JSON Schemas,
 and validate documents loaded by one of several supported parser libraries.
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 The goal of this project is to support validation of all constraints available
 in JSON Schema v7, while being competitive with the performance of a
 hand-written schema validator.