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Bison 1.875

2.6 Exercises

1. Add some new functions from `math.h' to the initialization list.

2. Add another array that contains constants and their values. Then modify init_table to add these constants to the symbol table. It will be easiest to give the constants type VAR.

3. Make the program report an error if the user refers to an uninitialized variable in any way except to store a value in it.