libguile/gh_predicates.c

   1 /*      Copyright (C) 1995,1996,1997, 2000 Free Software Foundation, Inc.
   2
   3  * This program is free software; you can redistribute it and/or modify
   4  * it under the terms of the GNU General Public License as published by
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   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  * GNU General Public License for more details.
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  14  * along with this software; see the file COPYING.  If not, write to
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  18  * As a special exception, the Free Software Foundation gives permission
  19  * for additional uses of the text contained in its release of GUILE.
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  23  * resulting executable to be covered by the GNU General Public License.
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  25  * linking the GUILE library code into it.
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  41 \f
  42
  43 /* type predicates and equality predicates */
  44
  45 #include "libguile/gh.h"
  46
  47 /* type predicates: tell you if an SCM object has a given type */
  48 int
  49 gh_boolean_p (SCM val)
  50 {
  51   return (SCM_NFALSEP (scm_boolean_p (val)));
  52 }
  53 int
  54 gh_symbol_p (SCM val)
  55 {
  56   return (SCM_NFALSEP (scm_symbol_p (val)));
  57 }
  58 int
  59 gh_char_p (SCM val)
  60 {
  61   return (SCM_NFALSEP (scm_char_p (val)));
  62 }
  63 int
  64 gh_vector_p (SCM val)
  65 {
  66   return (SCM_NFALSEP (scm_vector_p (val)));
  67 }
  68 int
  69 gh_pair_p (SCM val)
  70 {
  71   return (SCM_NFALSEP (scm_pair_p (val)));
  72 }
  73 int
  74 gh_number_p (SCM val)
  75 {
  76   return (SCM_NFALSEP (scm_number_p (val)));
  77 }
  78 int
  79 gh_string_p (SCM val)
  80 {
  81   return (SCM_NFALSEP (scm_string_p (val)));
  82 }
  83 int
  84 gh_procedure_p (SCM val)
  85 {
  86   return (SCM_NFALSEP (scm_procedure_p (val)));
  87 }
  88 int
  89 gh_list_p (SCM val)
  90 {
  91   return (SCM_NFALSEP (scm_list_p (val)));
  92 }
  93 int
  94 gh_inexact_p (SCM val)
  95 {
  96   return (SCM_NFALSEP (scm_inexact_p (val)));
  97 }
  98 int
  99 gh_exact_p (SCM val)
 100 {
 101   return (SCM_NFALSEP (scm_exact_p (val)));
 102 }
 103
 104 /* the three types of equality */
 105 int
 106 gh_eq_p (SCM x, SCM y)
 107 {
 108   return (SCM_NFALSEP (scm_eq_p (x, y)));
 109 }
 110 int
 111 gh_eqv_p (SCM x, SCM y)
 112 {
 113   return (SCM_NFALSEP (scm_eqv_p (x, y)));
 114 }
 115 int
 116 gh_equal_p (SCM x, SCM y)
 117 {
 118   return (SCM_NFALSEP (scm_equal_p (x, y)));
 119 }
 120
 121 /* equivalent to (string=? ...), but returns 0 or 1 rather than Scheme
 122    booleans */
 123 int
 124 gh_string_equal_p(SCM s1, SCM s2)
 125 {
 126   return (SCM_NFALSEP (scm_string_equal_p(s1, s2)));
 127 }
 128
 129 /* equivalent to (null? ...), but returns 0 or 1 rather than Scheme
 130    booleans */
 131 int
 132 gh_null_p(SCM l)
 133 {
 134   return (SCM_NFALSEP(scm_null_p(l)));
 135 }
 136
 137 /*
 138   Local Variables:
 139   c-file-style: "gnu"
 140   End:
 141 */