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annotate tests/mpp/README @ 13:43d8b194fb4e

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Remove unused variables.
author David A. Holland
date Tue, 31 May 2022 00:59:00 -0400
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1 This test suite is a subset of one put together some years ago, as a
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2 regression suite for a different cpp.
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3
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4 It was never intended to test for standards conformance, although if
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5 you look around you'll find that the mpp example gets quite a lot of
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6 things wrong.
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7
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8 Some highlights:
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9
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10 badinc15.c - crashes
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11 badmac{03-06,17,18,20}.c - varargs macros not supported
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12 badmac07.c - allows multiple definition of macro arg names
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13 badmac08.c - allows arbitrary redefinitions of macros
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14 badmac{09,10-14}.c - allows undefining/redefining builtin macros
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15 badmac{15,16}.c - allows defining "defined"
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16 badmisc{1,2}.c - allows out-of-range line numbers
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17 broken01.c - passing empty macro args crashes
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18 broken02.c - doesn't allow macro expansions to span lines
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19 broken{03-04}.c - even simple recursive macros crash
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20 broken05.c - wrong number of macro args causes assertion
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21 broken06.c - nested token pasting crashes
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22 broken07.c - doesn't allow pasting to an empty token
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23 broken08.c - empty macro before directive causes strange error
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24 broken{09,10,11}.c - macros expanding to directive-like lines crash
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25 broken12.c - weird thing with #undef inside #if 0
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26 error1.c - apparently doesn't support #error
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27 evil01.c - crashes
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28 evil02.c - completely bogus error message
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29 includes.c - incorrect macro substitution in final #includes
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30 length{01-06}.c - crashes
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31 line.c - doesn't support line numbering?
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32
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33 misc.c
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34 - doesn't splice continuation lines correctly in some cases
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35 - doesn't handle // comments
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36 - doesn't understand digraph tokens
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37 - doesn't handle character constants in conditionals properly
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38 - after #undef ifndef, #ifdef ifndef gives wrong answer
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39 - doesn't handle nested expansion correctly
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40 - allows pasting punctuation tokens together