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145
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1 // { dg-do run }
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2
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3 // template parm in a class
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4
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5 #include "../coro.h"
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6
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7 // boiler-plate for tests of codegen
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8 #define USE_AWAIT_TRANSFORM
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9 #include "../coro1-ret-int-yield-int.h"
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10
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11 template <typename T>
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12 class foo
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13 {
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14 public:
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15 auto get_lam ()
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16 {
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17 auto l = [](T y) -> coro1
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18 {
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19 T x = y;
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20 co_return co_await x + 3;
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21 };
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22 return l;
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23 }
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24 };
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25
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26 int main ()
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27 {
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28 foo<int> inst {};
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29 auto ll = inst.get_lam ();
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30
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31 PRINT ("main: create coro1");
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32 int arg = 17; // avoid a dangling reference
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33 coro1 x = ll (arg);
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34 if (x.handle.done())
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35 abort();
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36
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37 x.handle.resume();
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38 PRINT ("main: after resume (initial suspend)");
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39
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40 x.handle.resume();
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41 PRINT ("main: after resume (co_await)");
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42
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43 /* Now we should have the co_returned value. */
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44 int y = x.handle.promise().get_value();
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45 if ( y != 20 )
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46 {
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47 PRINTF ("main: wrong result (%d).", y);
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48 abort ();
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49 }
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50
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51 if (!x.handle.done())
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52 {
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53 PRINT ("main: apparently not done...");
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54 abort ();
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55 }
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56 PRINT ("main: returning");
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57 return 0;
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58 }
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