[Cython] a problem with sizeof() return type

[Lisandro Dalcin]

Cython treats sizeof() as if it returns 'int', but IMHO it should be 'size_t'.

Implementing this the right way would require to make Cython recognize
'size_t' as a native type, more or less in the way it already
recognizes 'Py_ssize_t'. What do you think about this?

-- 
Lisandro Dalcín
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Centro Internacional de Métodos Computacionales en Ingeniería (CIMEC)
Instituto de Desarrollo Tecnológico para la Industria Química (INTEC)
Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)
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