libguile/gh_predicates.c

   1 /*      Copyright (C) 1995,1996,1997 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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   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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  41 \f
  42
  43 /* type predicates and equality predicates */
  44
  45 #include <stdio.h>
  46
  47 #include "libguile/gh.h"
  48
  49 /* type predicates: tell you if an SCM object has a given type */
  50 int
  51 gh_boolean_p (SCM val)
  52 {
  53   return (SCM_NFALSEP (scm_boolean_p (val)));
  54 }
  55 int
  56 gh_symbol_p (SCM val)
  57 {
  58   return (SCM_NFALSEP (scm_symbol_p (val)));
  59 }
  60 int
  61 gh_char_p (SCM val)
  62 {
  63   return (SCM_NFALSEP (scm_char_p (val)));
  64 }
  65 int
  66 gh_vector_p (SCM val)
  67 {
  68   return (SCM_NFALSEP (scm_vector_p (val)));
  69 }
  70 int
  71 gh_pair_p (SCM val)
  72 {
  73   return (SCM_NFALSEP (scm_pair_p (val)));
  74 }
  75 int
  76 gh_number_p (SCM val)
  77 {
  78   return (SCM_NFALSEP (scm_number_p (val)));
  79 }
  80 int
  81 gh_string_p (SCM val)
  82 {
  83   return (SCM_NFALSEP (scm_string_p (val)));
  84 }
  85 int
  86 gh_procedure_p (SCM val)
  87 {
  88   return (SCM_NFALSEP (scm_procedure_p (val)));
  89 }
  90 int
  91 gh_list_p (SCM val)
  92 {
  93   return (SCM_NFALSEP (scm_list_p (val)));
  94 }
  95 int
  96 gh_inexact_p (SCM val)
  97 {
  98   return (SCM_NFALSEP (scm_inexact_p (val)));
  99 }
 100 int
 101 gh_exact_p (SCM val)
 102 {
 103   return (SCM_NFALSEP (scm_exact_p (val)));
 104 }
 105
 106 /* the three types of equality */
 107 int
 108 gh_eq_p (SCM x, SCM y)
 109 {
 110   return (SCM_NFALSEP (scm_eq_p (x, y)));
 111 }
 112 int
 113 gh_eqv_p (SCM x, SCM y)
 114 {
 115   return (SCM_NFALSEP (scm_eqv_p (x, y)));
 116 }
 117 int
 118 gh_equal_p (SCM x, SCM y)
 119 {
 120   return (SCM_NFALSEP (scm_equal_p (x, y)));
 121 }
 122
 123 /* equivalent to (string=? ...), but returns 0 or 1 rather than Scheme
 124    booleans */
 125 int
 126 gh_string_equal_p(SCM s1, SCM s2)
 127 {
 128   return (SCM_NFALSEP (scm_string_equal_p(s1, s2)));
 129 }
 130
 131 /* equivalent to (null? ...), but returns 0 or 1 rather than Scheme
 132    booleans */
 133 int
 134 gh_null_p(SCM l)
 135 {
 136   return (SCM_NFALSEP(scm_null_p(l)));
 137 }
 138
 139 /*
 140   Local Variables:
 141   c-file-style: "gnu"
 142   End:
 143 */