mirror of https://github.com/swig/swig.git
68 lines
3.5 KiB
Java
68 lines
3.5 KiB
Java
import cpp20_abbreviated_template_mixed.*;
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public class cpp20_abbreviated_template_mixed_runme {
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static {
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try {
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System.loadLibrary("cpp20_abbreviated_template_mixed");
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} catch (UnsatisfiedLinkError e) {
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System.err.println("Native code library failed to load. See the chapter on Dynamic Linking Problems in the SWIG Java documentation for help.\n" + e);
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System.exit(1);
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}
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}
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public static void main(String argv[]) {
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// Each non-decorated case pairs std::string with a numeric type so an argument order swap is a
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// Java compile error rather than a silent numeric conversion. Each mix function joins its
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// arguments with '/' between them via a shared join_text helper, so the expected strings show
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// the binding directly.
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// a. Explicit typename + auto. T=std::string, auto=int.
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if (!cpp20_abbreviated_template_mixed.a_mix_si("hello", 5).equals("hello/5"))
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throw new RuntimeException("a_mix_si");
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// b. Auto + explicit typename. Template <U=std::string, auto=int> -> wrapped (int, std::string).
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if (!cpp20_abbreviated_template_mixed.b_mix_is(3, "hi").equals("3/hi"))
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throw new RuntimeException("b_mix_is");
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// c. Two explicit parms surrounding an auto. Template <T=int, V=int, auto=std::string> ->
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// wrapped (int, string, int) per the function parm order.
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if (!cpp20_abbreviated_template_mixed.c_mix_isi(1, "x", 2).equals("1/x/2"))
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throw new RuntimeException("c_mix_isi");
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// d. Constrained explicit + constrained auto. T=int, auto=double.
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if (!cpp20_abbreviated_template_mixed.d_mix_id(3, 4.0).equals("3/4.00"))
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throw new RuntimeException("d_mix_id");
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// e. Two autos surrounding an explicit typename. auto=string, T=int, auto=string.
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if (!cpp20_abbreviated_template_mixed.e_mix_iss("a", 7, "b").equals("a/7/b"))
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throw new RuntimeException("e_mix_iss");
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// Cases f..j combine 'auto' with a variadic explicit pack. Per C++20 [dcl.fct]/19 the invented
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// type template-parameter for each 'auto' is appended after the explicit list, so when that list
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// ends in a pack the invented sits past it. %template binding is positional: leading non-variadic
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// parms bind one to one, the pack absorbs the middle args, and trailing args bind to the invented
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// parms in declaration order.
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// f. Auto + variadic pack. Ts={int, std::string}, invented=double. Pack args wrapped in "[" / "]" markers.
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if (!cpp20_abbreviated_template_mixed.f_mix_isd(2.5, 7, "Y").equals("2.50/[/7/Y/]"))
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throw new RuntimeException("f_mix_isd");
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// g. Leading explicit + auto + variadic pack. T=int, Ts={std::string, double}, invented=std::string.
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if (!cpp20_abbreviated_template_mixed.g_mix_isds(1, "Y", "Z", 2.5).equals("1/Y/[/Z/2.50/]"))
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throw new RuntimeException("g_mix_isds");
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// h. Constrained auto + variadic pack. Ts={int, std::string}, invented=double.
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if (!cpp20_abbreviated_template_mixed.h_mix_isd(4.0, 7, "Y").equals("4.00/[/7/Y/]"))
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throw new RuntimeException("h_mix_isd");
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// i. Two autos surrounding a variadic pack. Ts={int, std::string}, invented1=double, invented2=int.
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if (!cpp20_abbreviated_template_mixed.i_mix_isdi(2.5, 7, "Y2", 99).equals("2.50/[/7/Y2/]/99"))
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throw new RuntimeException("i_mix_isdi");
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// j. Decorated auto (const auto&) + variadic pack. Ts={int, std::string}, invented=double.
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if (!cpp20_abbreviated_template_mixed.j_mix_isd(2.5, 7, "Y").equals("2.50/[/7/Y/]"))
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throw new RuntimeException("j_mix_isd");
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}
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}
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