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Detect face being aliased to itself

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Fixes #374
This commit is contained in:
Maxime Coste 2015-08-12 21:49:29 +01:00
parent e7e414c46d
commit 7a36a4644e
1 changed files with 3 additions and 0 deletions
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3
src/face_registry.cc
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@ -58,6 +58,9 @@ void FaceRegistry::register_alias(const String& name, const String& facedesc,
[](char c){ return not isalnum(c); })) [](char c){ return not isalnum(c); }))
throw runtime_error(format("invalid alias name: '{}'", name)); throw runtime_error(format("invalid alias name: '{}'", name));
if (name == facedesc)
throw runtime_error(format("cannot alias face '{}' to itself", name));
FaceOrAlias& alias = m_aliases[name]; FaceOrAlias& alias = m_aliases[name];
auto it = m_aliases.find(facedesc); auto it = m_aliases.find(facedesc);
if (it != m_aliases.end()) if (it != m_aliases.end())