06296a7128
Until now SWIG quietly ignored such errors unless -Wextra (or -Wall which implies -Wextra) was passed, but this is unhelpful as it hides problems. To illustrate this point, enabling this warning by default revealled a typo in the preproc_defined.i testcase in SWIG's own testsuite. If you really don't want to see this warning, you can suppress it with command line option -w202 or by using this in your interface file: %warnfilter(SWIGWARN_PP_EVALUATION); Both will work with older versions of SWIG too. Fixes #1465 Fixes #2389
74 lines
1,002 B
OpenEdge ABL
74 lines
1,002 B
OpenEdge ABL
%module xxx
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/* Divide by zero */
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#define ZERO 0
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#if 1%ZERO
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#endif
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#if 2/ZERO
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#endif
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#if 1%(5-5)
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#endif
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#if 2/(55-55)
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#endif
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/* Floating point */
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#if 1.2
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#endif
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#if 2e3
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#endif
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#if 0
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#elif 8.8
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#endif
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/* Missing whitespace after preproc directive */
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#if123
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#endif
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#if456e
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#endif
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#if 0
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#warning This should not warn
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#elif1
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#warning This should also not warn
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#endif
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#if(1)
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#warning Warning okay: #if(1)
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#endif
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/* The SWIG preprocessor support strings with equality/inequality tests.
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* Check error cases.
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*/
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#if "TWO" == 1
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#endif
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/* This didn't fail prior with SWIG < 4.1. Github #1384. */
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#if 1 == ("TWO")
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#endif
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/* These should all give errors. */
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#if "1"
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#endif
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#if -"1"
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#endif
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#if "1" == -"-1"
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#endif
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#if "1" == !"-1"
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#endif
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#if "1" == ~"1"
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#endif
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/* Unary + was a no-op and so this didn't give an error in SWIG < 4.1.0. */
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#if "1" == +"1"
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#endif
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/* Spaceship operator doesn't seem to be allowed in preprocessor expressions,
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* and isn't valid in C at all.
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*/
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#if (4 <=> 2) < 0
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#endif
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