[Cython] PATCH: removing strcmp() in favor of custom impl or other fixes

[Lisandro Dalcin]

Here you have the patch... Implemented as an (inline) function in a
utility code that anyway is alwas emited (as it is INLINE, the GCC
does not warn). Two things worth to point out:

* The API import function uses a different thing, just a while loop. I
do not want to complicate things in generated API headers for
something that can be done with two auxiliar variables and a one-line
while loop.

* In the keyword handling code, I've used _PyString_Eq(), which is
available in the C-API for Py2. If Python's C-API provides what we
need, let's use it. Moreover, just in case, please see the
implementation of _PyString_Eq(), it is smarter (and likely faster)
than a strcmp() call ;-).






-- 
Lisandro Dalcín
---------------
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)
PTLC - Güemes 3450, (3000) Santa Fe, Argentina
Tel/Fax: +54-(0)342-451.1594
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