9 lines
253 B
C++
9 lines
253 B
C++
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/* u_cplus.C: C++: #undef or #define __cplusplus causes undefined
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behavior. */
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/* { dg-do preprocess } */
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/* { dg-options "-std=c++98 -pedantic-errors" } */
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#undef __cplusplus /* { dg-error "undefining | shouldn't be undefined" } */
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