kopia lustrzana https://gitlab.com/sane-project/backends
52 wiersze
1.3 KiB
C
52 wiersze
1.3 KiB
C
#include <sane/sanei.h>
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#define ENTRY(name) PASTE(PASTE(PASTE(sane_,BACKEND_NAME),_),name)
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/* The cpp that comes with GNU C 2.5 seems to have troubles understanding
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vararg macros. */
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#if __GNUC__ - 0 > 2 || (__GNUC__ - 0 == 2 && __GNUC_MINOR__ > 5)
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# define HAVE_VARARG_MACROS
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#endif
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#ifndef HAVE_VARARG_MACROS
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extern void sanei_debug (int level, const char *msg, ...);
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#endif
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#ifdef NDEBUG
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# define DBG_INIT(backend, var)
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# ifdef HAVE_VARARG_MACROS
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# define DBG(level, msg, args...)
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# else
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# define DBG if (0) sanei_debug
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# endif
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# define IF_DBG(x)
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#else
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# include <stdio.h>
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#define DBG_LEVEL PASTE(sanei_debug_,BACKEND_NAME)
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#if defined(BACKEND_NAME) && !defined(STUBS)
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int PASTE(sanei_debug_,BACKEND_NAME);
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#endif
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# define DBG_INIT() \
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sanei_init_debug (STRINGIFY(BACKEND_NAME), \
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&PASTE(sanei_debug_,BACKEND_NAME))
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/* The cpp that comes with GNU C 2.5 seems to have troubles understanding
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vararg macros. */
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#ifdef HAVE_VARARG_MACROS
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# define DBG(level, msg, args...) \
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do { \
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if (DBG_LEVEL >= (level)) \
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fprintf (stderr, "[" STRINGIFY(BACKEND_NAME) "] " msg, ##args); \
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} while (0)
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extern void sanei_init_debug (const char * backend, int * debug_level_var);
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#else
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# define DBG sanei_debug
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#endif
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# define IF_DBG(x) x
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#endif
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