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author | Jim Blandy <jimb@red-bean.com> | 1996-07-25 22:56:11 +0000 |
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committer | Jim Blandy <jimb@red-bean.com> | 1996-07-25 22:56:11 +0000 |
commit | 0f2d19dd46f83f41177f61d585732b32a866d613 (patch) | |
tree | 86bf67b8c05d36d8181d393e7d706785a74ee777 /libguile/sequences.c | |
download | guile-0f2d19dd46f83f41177f61d585732b32a866d613.tar.gz |
maintainer changed: was lord, now jimb; first import
Diffstat (limited to 'libguile/sequences.c')
-rw-r--r-- | libguile/sequences.c | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/libguile/sequences.c b/libguile/sequences.c new file mode 100644 index 000000000..6973f74dc --- /dev/null +++ b/libguile/sequences.c @@ -0,0 +1,128 @@ +/* Copyright (C) 1995,1996 Free Software Foundation, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this software; see the file COPYING. If not, write to + * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. + * + * As a special exception, the Free Software Foundation gives permission + * for additional uses of the text contained in its release of GUILE. + * + * The exception is that, if you link the GUILE library with other files + * to produce an executable, this does not by itself cause the + * resulting executable to be covered by the GNU General Public License. + * Your use of that executable is in no way restricted on account of + * linking the GUILE library code into it. + * + * This exception does not however invalidate any other reasons why + * the executable file might be covered by the GNU General Public License. + * + * This exception applies only to the code released by the + * Free Software Foundation under the name GUILE. If you copy + * code from other Free Software Foundation releases into a copy of + * GUILE, as the General Public License permits, the exception does + * not apply to the code that you add in this way. To avoid misleading + * anyone as to the status of such modified files, you must delete + * this exception notice from them. + * + * If you write modifications of your own for GUILE, it is your choice + * whether to permit this exception to apply to your modifications. + * If you do not wish that, delete this exception notice. + */ + + +#include <stdio.h> +#include "_scm.h" + + + + + +#ifdef __STDC__ +int +scm_obj_length (SCM obj) +#else +int +scm_obj_length (obj) + SCM obj; +#endif +{ + int i; + i = scm_ilength(obj); + if (i >= 0) + return i; + else if (SCM_NIMP (obj)) + { + if (SCM_ROSTRINGP (obj)) + return SCM_ROLENGTH (obj); + else if (SCM_VECTORP (obj)) + return SCM_LENGTH (obj); + else + return -1; + } + else + return -1; +} + + +SCM_PROC(s_length, "length", 1, 0, 0, scm_length); +#ifdef __STDC__ +SCM +scm_length(SCM x) +#else +SCM +scm_length(x) + SCM x; +#endif +{ + int i; + i = scm_obj_length(x); + if (i >= 0) + return SCM_MAKINUM (i); + else + { + SCM_ASSERT(0, x, SCM_ARG1, s_length); + return SCM_BOOL_F; + } +} + + + + + +SCM_PROC (s_reverse, "reverse", 1, 0, 0, scm_reverse); +#ifdef __STDC__ +SCM +scm_reverse (SCM objs) +#else +SCM +scm_reverse (objs) + SCM objs; +#endif +{ + return scm_list_reverse (objs); +} + + + + +#ifdef __STDC__ +void +scm_init_sequences (void) +#else +void +scm_init_sequences () +#endif +{ +#include "sequences.x" +} + |