23 lines
773 B
C++
23 lines
773 B
C++
#include "util/exception.hpp"
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// This function exists to 'anchor' the class, and stop the compiler from
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// copying vtable and RTTI info into every object file that includes
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// this header. (Caught by -Wweak-vtables under Clang.)
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// More information from the LLVM Coding Standards:
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// If a class is defined in a header file and has a vtable (either it has
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// virtual methods or it derives from classes with virtual methods), it must
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// always have at least one out-of-line virtual method in the class. Without
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// this, the compiler will copy the vtable and RTTI into every .o file that
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// #includes the header, bloating .o file sizes and increasing link times.
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namespace osrm
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{
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namespace util
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{
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void exception::anchor() const {}
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void RuntimeError::anchor() const {}
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}
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}
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