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These C functions mirror Scheme's type predicate procedures with one
important difference. The C routines return C boolean values (0 and 1)
instead of SCM_BOOL_T and SCM_BOOL_F.
The Scheme notational convention of putting a ? at the end of
predicate procedure names is mirrored in C by placing _p at the
end of the procedure. For example, (pair? ...) maps to
gh_pair_p(...).
- Function: int gh_boolean_p (SCM val)
-
Returns 1 if val is a boolean, 0 otherwise.
- Function: int gh_symbol_p (SCM val)
-
Returns 1 if val is a symbol, 0 otherwise.
- Function: int gh_char_p (SCM val)
-
Returns 1 if val is a char, 0 otherwise.
- Function: int gh_vector_p (SCM val)
-
Returns 1 if val is a vector, 0 otherwise.
- Function: int gh_pair_p (SCM val)
-
Returns 1 if val is a pair, 0 otherwise.
- Function: int gh_procedure_p (SCM val)
-
Returns 1 if val is a procedure, 0 otherwise.
- Function: int gh_list_p (SCM val)
-
Returns 1 if val is a list, 0 otherwise.
- Function: int gh_inexact_p (SCM val)
-
Returns 1 if val is an inexact number, 0 otherwise.
- Function: int gh_exact_p (SCM val)
-
Returns 1 if val is an exact number, 0 otherwise.
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