Akim Demaille 7194099027 lalr1.cc: don't generate useless constructors when variant is used ...

This generates less code, which is nicer to read, but also takes less
chances with compilers such as G++ 4.8 that are too strict and check
"dead code" (templated code that is not instantiated).

* data/c++.m4 (b4_symbol_type_declare, b4_symbol_type_define): When
variants are used, don't generate code meant for non variants.

2018-09-09 11:40:23 +02:00

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