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111
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1 /* Test "ignore redundant include" facility.
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2
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3 We must test with C and C++ comments, and null directives, outside
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4 the guard conditional; also, we test guarding with #ifndef and #if
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5 !defined. -H is used because cpp might confuse the issue by
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6 optimizing out #line markers. This test only passes if each of the
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7 headers is read exactly once.
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8
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9 The disgusting regexp in the dg-error line, when stuck into
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10 dg.exp's compiler-output regexp, matches the correct -H output and
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11 only the correct -H output. It has to be all on one line because
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12 otherwise it will not be interpreted all in one unit. */
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13
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14 /* { dg-do compile }
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15 { dg-options "-H" }
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16 { dg-message "mi1c\.h\n\[^\n\]*mi1cc\.h\n\[^\n\]*mi1nd\.h\n\[^\n\]*mi1ndp\.h\n\[^\n\]*mi1x\.h" "redundant include check" { target *-*-* } 0 } */
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17
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18 #include "mi1c.h"
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19 #include "mi1c.h"
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20 #include "mi1c.h"
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21
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22 #include "mi1cc.h"
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23 #include "mi1cc.h"
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24
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25 #include "mi1nd.h"
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26 #include "mi1nd.h"
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27
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28 #include "mi1ndp.h"
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29 #include "mi1ndp.h"
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30
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31 #define MIX_H
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32 #include "mi1x.h"
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33 #include "mi1x.h"
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34
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35 int
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36 main (void)
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37 {
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38 return a + b + c + d;
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39 }
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