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circuits_uart

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Discover and use UARTs and serial ports in Elixir

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circuits_uart src ei_copy eidef.h
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src/ei_copy/eidef.h 

// SPDX-FileCopyrightText: Ericsson AB 2002-2009. All Rights Reserved.

//

// SPDX-License-Identifier: Apache-2.0



#ifndef _EIDEF_H

#define _EIDEF_H



/* Common definitions used in ei user interface */



#include <stddef.h>		/* We want to get definition of NULL */



#include "ei.h"			/* Want the API function declarations */



#define EISMALLBUF 2048



#ifdef USE_ISINF_ISNAN		/* simulate finite() */

#  define isfinite(f) (!isinf(f) && !isnan(f))

#  define HAVE_ISFINITE

#elif defined(__GNUC__) && defined(HAVE_FINITE)

/* We use finite in gcc as it emits assembler instead of

   the function call that isfinite emits. The assembler is

   significantly faster. */

#  ifdef isfinite

#     undef isfinite

#  endif

#  define isfinite finite

#  ifndef HAVE_ISFINITE

#    define HAVE_ISFINITE

#  endif

#elif defined(isfinite) && !defined(HAVE_ISFINITE)

#  define HAVE_ISFINITE

#elif !defined(HAVE_ISFINITE) && defined(HAVE_FINITE)

#  define isfinite finite

#  define HAVE_ISFINITE

#endif



#endif /* _EIDEF_H */