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dbc9a40007
Use explicit instantiation declaration and definition to silence Clang
error:
tst-unique3.cc:6:18: error: instantiation of variable 'S<char>::i' required here, but no definition is available [-Werror,-Wundefined-var-template]
6 | int t = S<char>::i;
| ^
./tst-unique3.h:5:14: note: forward declaration of template entity is here
5 | static int i;
| ^
tst-unique3.cc:6:18: note: add an explicit instantiation declaration to suppress this warning if 'S<char>::i' is explicitly instantiated in another translation unit
6 | int t = S<char>::i;
| ^
Signed-off-by: H.J. Lu <hjl.tools@gmail.com>
Reviewed-by: Sam James <sam@gentoo.org>
54 lines
1.2 KiB
C++
54 lines
1.2 KiB
C++
// BZ 12511
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#include "tst-unique4.h"
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#include <cstdio>
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extern template struct S<1>;
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extern template struct S<2>;
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extern template struct S<3>;
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extern template struct S<4>;
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extern template struct S<5>;
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extern template struct S<6>;
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extern template struct S<7>;
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extern template struct S<8>;
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extern template struct S<9>;
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extern template struct S<10>;
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extern template struct S<11>;
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extern template struct S<12>;
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extern template struct S<13>;
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extern template struct S<14>;
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extern template struct S<15>;
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extern template struct S<16>;
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extern template struct S<17>;
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extern template struct S<18>;
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extern template struct S<19>;
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extern template struct S<20>;
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extern template struct S<21>;
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extern template struct S<22>;
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extern template struct S<23>;
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extern template struct S<24>;
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static int a[24] =
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{
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S<1>::i, S<2>::i, S<3>::i, S<4>::i, S<5>::i, S<6>::i, S<7>::i, S<8>::i,
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S<9>::i, S<10>::i, S<11>::i, S<12>::i, S<13>::i, S<14>::i, S<15>::i,
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S<16>::i, S<17>::i, S<18>::i, S<19>::i, S<20>::i, S<21>::i, S<22>::i,
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S<23>::i, S<24>::i
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};
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int
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main (void)
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{
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int result = 0;
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for (int i = 0; i < 24; ++i)
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{
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printf("%d ", a[i]);
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result |= a[i] != i + 1;
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}
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printf("\n%d\n", S<1>::j);
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result |= S<1>::j != -1;
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return result;
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}
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