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-rw-r--r--libguile/error.h129
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diff --git a/libguile/error.h b/libguile/error.h
new file mode 100644
index 000000000..cd134e650
--- /dev/null
+++ b/libguile/error.h
@@ -0,0 +1,129 @@
+#ifndef SCM_ERROR_H
+#define SCM_ERROR_H
+
+/* Copyright 1995-1998,2000-2002,2006,2008,2011,2014,2018
+ Free Software Foundation, Inc.
+
+ This file is part of Guile.
+
+ Guile is free software: you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ Guile 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 Lesser General Public
+ License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with Guile. If not, see
+ <https://www.gnu.org/licenses/>. */
+
+
+
+#include "libguile/scm.h"
+
+
+SCM_API SCM scm_system_error_key;
+SCM_API SCM scm_num_overflow_key;
+SCM_API SCM scm_out_of_range_key;
+SCM_API SCM scm_args_number_key;
+SCM_API SCM scm_arg_type_key;
+SCM_API SCM scm_misc_error_key;
+
+
+
+/* Snarfing for docs may override SCM_ASSERT; see snarf.h. */
+#ifndef SCM_ASSERT
+#define SCM_ASSERT(_cond, _arg, _pos, _subr) \
+ do { if (SCM_UNLIKELY (!(_cond))) \
+ scm_wrong_type_arg (_subr, _pos, _arg); } while (0)
+#endif
+#define SCM_ASSERT_TYPE(_cond, _arg, _pos, _subr, _msg) \
+ do { if (SCM_UNLIKELY (!(_cond))) \
+ scm_wrong_type_arg_msg(_subr, _pos, _arg, _msg); } while (0)
+
+
+
+
+SCM_API void scm_error (SCM key, const char *subr, const char *message,
+ SCM args, SCM rest) SCM_NORETURN;
+SCM_API SCM scm_error_scm (SCM key, SCM subr, SCM message,
+ SCM args, SCM rest) SCM_NORETURN;
+SCM_API SCM scm_strerror (SCM err);
+SCM_API void scm_syserror (const char *subr) SCM_NORETURN;
+SCM_API void scm_syserror_msg (const char *subr, const char *message,
+ SCM args, int eno) SCM_NORETURN;
+SCM_API void scm_num_overflow (const char *subr) SCM_NORETURN;
+SCM_API void scm_out_of_range (const char *subr, SCM bad_value)
+ SCM_NORETURN;
+SCM_API void scm_out_of_range_pos (const char *subr, SCM bad_value, SCM pos)
+ SCM_NORETURN;
+SCM_API void scm_wrong_num_args (SCM proc) SCM_NORETURN;
+SCM_API void scm_error_num_args_subr (const char* subr) SCM_NORETURN;
+SCM_API void scm_wrong_type_arg (const char *subr, int pos,
+ SCM bad_value) SCM_NORETURN;
+SCM_INTERNAL void scm_i_wrong_type_arg_symbol (SCM symbol, int pos,
+ SCM bad_value) SCM_NORETURN;
+SCM_API void scm_wrong_type_arg_msg (const char *subr, int pos,
+ SCM bad_value, const char *sz) SCM_NORETURN;
+SCM_API void scm_misc_error (const char *subr, const char *message,
+ SCM args) SCM_NORETURN;
+SCM_INTERNAL void scm_init_error (void);
+
+
+
+#ifndef SCM_MAGIC_SNARFER
+/* Let these macros pass through if
+ we are snarfing; thus we can tell the
+ difference between the use of an actual
+ number vs. the use of one of these macros --
+ actual numbers in SCM_VALIDATE_* and SCM_ASSERT
+ constructs must match the formal argument name,
+ but using SCM_ARG* avoids the test */
+
+#define SCM_ARGn 0
+#define SCM_ARG1 1
+#define SCM_ARG2 2
+#define SCM_ARG3 3
+#define SCM_ARG4 4
+#define SCM_ARG5 5
+#define SCM_ARG6 6
+#define SCM_ARG7 7
+
+#endif /* SCM_MAGIC_SNARFER */
+
+
+
+#define SCM_MAKE_VALIDATE(pos, var, pred) \
+ do { \
+ SCM_ASSERT_TYPE (SCM_ ## pred (var), var, pos, FUNC_NAME, #pred); \
+ } while (0)
+
+#define SCM_I_MAKE_VALIDATE_MSG2(pos, var, pred, msg) \
+ do { \
+ SCM_ASSERT_TYPE (pred (var), var, pos, FUNC_NAME, msg); \
+ } while (0)
+
+#define SCM_MAKE_VALIDATE_MSG(pos, var, pred, msg) \
+ SCM_I_MAKE_VALIDATE_MSG2 (pos, var, SCM_ ## pred, msg)
+
+#define SCM_SYSERROR do { scm_syserror (FUNC_NAME); } while (0)
+
+#define SCM_MEMORY_ERROR do { scm_memory_error (FUNC_NAME); } while (0)
+
+#define SCM_SYSERROR_MSG(str, args, val) \
+ do { scm_syserror_msg (FUNC_NAME, (str), (args), (val)); } while (0)
+
+#define SCM_MISC_ERROR(str, args) \
+ do { scm_misc_error (FUNC_NAME, str, args); } while (0)
+
+#define SCM_WRONG_NUM_ARGS() \
+ do { scm_error_num_args_subr (FUNC_NAME); } while (0)
+
+#define SCM_WRONG_TYPE_ARG(pos, obj) \
+ do { scm_wrong_type_arg (FUNC_NAME, pos, obj); } while (0)
+
+
+#endif /* SCM_ERROR_H */