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📄 sysmac1.c

📁 this is a gcc file, you can download it and learn its usetility, for further detail please look at t
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/* Copyright (C) 2001 Free Software Foundation, Inc.  *//* { dg-do preprocess } *//* { dg-options "-std=gnu99 -pedantic -Wtraditional" } *//* Tests diagnostics are suppressed for some macros defined in system   headers.  *//* Source: Neil Booth, 15 Jan 2001.  */#include "syshdr.h"#define uint 1U#define str(x) x#define foo(x, y...) bar(x, ##y) /* { dg-warning "named variadic macros" } */#if uint			/* { dg-warning "traditional C rejects" } */#endif#if sys_uint			/* { dg-bogus "traditional C rejects" } */#endif(str);				/* { dg-warning "used with arguments" } */(sys_str);			/* { dg-bogus "used with arguments" } */foo (one_arg);			/* { dg-warning "requires rest arguments" } */sys_foo (one_arg);		/* { dg-bogus "requires rest arguments" } */

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