f2de21eb83
Adding full support for these in expressions seems hard to do without introducing conflicts into the parser grammar, but in fact all reported cases have had parentheses around the comparison and we can support that with a few restrictions on the left side of `<`. Fixes #80 and #635. Also https://sourceforge.net/p/swig/bugs/1139/
35 lines
824 B
OpenEdge ABL
35 lines
824 B
OpenEdge ABL
%module constant_expr_c;
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/* Tests of constant expressions (C version). */
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%inline %{
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/* % didn't work in SWIG 1.3.40 and earlier. */
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const int X = 123%7;
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#define FOO 12 % 9
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double d_array[12 % 9];
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/* `<` and `>` in constant expressions caused parse errors before SWIG 4.1.0.
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* They're now supported if inside parentheses (and with some restrictions
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* on the LHS of `<`.
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*/
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// Testcase from https://github.com/swig/swig/issues/635
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#define TEST_A 1
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#define TEST_B 2
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#define TEST_C (TEST_A < TEST_B)
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#define TEST_D (TEST_A > TEST_B)
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// These have been supported since 1.3.41.
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#define TEST_E (TEST_A <= TEST_B)
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#define TEST_F (TEST_A >= TEST_B)
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// For completeness
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#define TEST_G (TEST_A == TEST_B)
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#define TEST_H (TEST_A != TEST_B)
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// No warning
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#if (TEST_A < TEST_B)
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#define TEST_I 1
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#else
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#define TEST_I 0
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#endif
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%}
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