28 lines
659 B
C
28 lines
659 B
C
/* Miscellaneous macros for type-checking Scheme objects.
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*/
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#define Check_Type(x,t) {\
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if (TYPE(x) != t) Wrong_Type (x, t);\
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}
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#define Check_List(x) {\
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if (TYPE(x) != T_Pair && !Nullp (x)) Wrong_Type_Combination (x, "list");\
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}
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#define Check_Number(x) {\
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register t = TYPE(x);\
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if (!Numeric (t)) Wrong_Type_Combination (x, "number");\
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}
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/* This should be renamed; it checks whether x is an *exact* integer.
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*/
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#define Check_Integer(x) {\
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register t = TYPE(x);\
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if (t != T_Fixnum && t != T_Bignum) Wrong_Type (x, T_Fixnum);\
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}
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#define Check_Mutable(x) {\
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if (ISCONST(x))\
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Primitive_Error ("attempt to modify constant");\
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}
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