/* util.h
*
- * Copyright (c) 1991-2001, Larry Wall
+ * Copyright (C) 1991, 1992, 1993, 1999, 2001, 2002, 2003, 2004, 2005,
+ * 2007, by Larry Wall and others
*
* You may distribute under the terms of either the GNU General Public
* License or the Artistic License, as specified in the README file.
(*(f) == '/' \
|| (strchr(f,':') \
|| ((*(f) == '[' || *(f) == '<') \
- && (isALNUM((f)[1]) || strchr("$-_]>",(f)[1])))))
+ && (isWORDCHAR((f)[1]) || strchr("$-_]>",(f)[1])))))
#else /* !VMS */
-# ifdef WIN32
+# if defined(WIN32) || defined(__CYGWIN__)
# define PERL_FILE_IS_ABSOLUTE(f) \
- (*(f) == '/' \
- || ((f)[0] && (f)[1] == ':') /* drive name */ \
- || ((f)[0] == '\\' && (f)[1] == '\\')) /* UNC path */
+ (*(f) == '/' || *(f) == '\\' /* UNC/rooted path */ \
+ || ((f)[0] && (f)[1] == ':')) /* drive name */
# else /* !WIN32 */
-# if defined( DOSISH) || defined(EPOC)
+# ifdef NETWARE
+# define PERL_FILE_IS_ABSOLUTE(f) \
+ (((f)[0] && (f)[1] == ':') /* drive name */ \
+ || ((f)[0] == '\\' && (f)[1] == '\\') /* UNC path */ \
+ || ((f)[3] == ':')) /* volume name, currently only sys */
+# else /* !NETWARE */
+# if defined(DOSISH) || defined(__SYMBIAN32__)
# define PERL_FILE_IS_ABSOLUTE(f) \
(*(f) == '/' \
|| ((f)[0] && (f)[1] == ':')) /* drive name */
-# else /* NEITHER DOSISH NOR EPOCISH */
-# ifdef MACOS_TRADITIONAL
-# define PERL_FILE_IS_ABSOLUTE(f) (strchr(f, ':'))
-# else /* !MACOS_TRADITIONAL */
-# define PERL_FILE_IS_ABSOLUTE(f) (*(f) == '/')
-# endif /* MACOS_TRADITIONAL */
+# else /* NEITHER DOSISH NOR SYMBIANISH */
+# define PERL_FILE_IS_ABSOLUTE(f) (*(f) == '/')
# endif /* DOSISH */
+# endif /* NETWARE */
# endif /* WIN32 */
#endif /* VMS */
+
+/*
+=head1 Miscellaneous Functions
+
+=for apidoc ibcmp
+
+This is a synonym for (! foldEQ())
+
+=for apidoc ibcmp_locale
+
+This is a synonym for (! foldEQ_locale())
+
+=cut
+*/
+#define ibcmp(s1, s2, len) cBOOL(! foldEQ(s1, s2, len))
+#define ibcmp_locale(s1, s2, len) cBOOL(! foldEQ_locale(s1, s2, len))
+
+/* outside the core, perl.h undefs HAS_QUAD if IV isn't 64-bit
+ We can't swap this to HAS_QUAD, because the logic here affects the type of
+ perl_drand48_t below, and that is visible outside of the core. */
+#if defined(U64TYPE) && !defined(USING_MSVC6)
+/* use a faster implementation when quads are available,
+ * but not with VC6 on Windows */
+# define PERL_DRAND48_QUAD
+#endif
+
+#ifdef PERL_DRAND48_QUAD
+
+/* U64 is only defined under PERL_CORE, but this needs to be visible
+ * elsewhere so the definition of PerlInterpreter is complete.
+ */
+typedef U64TYPE perl_drand48_t;
+
+#else
+
+struct PERL_DRAND48_T {
+ U16 seed[3];
+};
+
+typedef struct PERL_DRAND48_T perl_drand48_t;
+
+#endif
+
+#define PL_RANDOM_STATE_TYPE perl_drand48_t
+
+#define Perl_drand48_init(seed) (Perl_drand48_init_r(&PL_random_state, (seed)))
+#define Perl_drand48() (Perl_drand48_r(&PL_random_state))
+
+#ifdef USE_C_BACKTRACE
+
+typedef struct {
+ /* The number of frames returned. */
+ UV frame_count;
+ /* The total size of the Perl_c_backtrace, including this header,
+ * the frames, and the name strings. */
+ UV total_bytes;
+} Perl_c_backtrace_header;
+
+typedef struct {
+ void* addr; /* the program counter at this frame */
+
+ /* We could use Dl_info (as used by dladdr()) for many of these but
+ * that would be naughty towards non-dlfcn systems (hi there, Win32). */
+
+ void* symbol_addr; /* symbol address (hint: try symbol_addr - addr) */
+ void* object_base_addr; /* base address of the shared object */
+
+ /* The offsets are from the beginning of the whole backtrace,
+ * which makes the backtrace relocatable. */
+ STRLEN object_name_offset; /* pathname of the shared object */
+ STRLEN object_name_size; /* length of the pathname */
+ STRLEN symbol_name_offset; /* symbol name */
+ STRLEN symbol_name_size; /* length of the symbol name */
+ STRLEN source_name_offset; /* source code file name */
+ STRLEN source_name_size; /* length of the source code file name */
+ STRLEN source_line_number; /* source code line number */
+
+ /* OS X notes: atos(1) (more recently, "xcrun atos"), but the C
+ * API atos() uses is unknown (private "Symbolicator" framework,
+ * might require Objective-C even if the API would be known).
+ * Currently we open read pipe to "xcrun atos" and parse the
+ * output - quite disgusting. And that won't work if the
+ * Developer Tools isn't installed. */
+
+ /* FreeBSD notes: execinfo.h exists, but probably would need also
+ * the library -lexecinfo. BFD exists if the pkg devel/binutils
+ * has been installed, but there seems to be a known problem that
+ * the "bfd.h" getting installed refers to "ansidecl.h", which
+ * doesn't get installed. */
+
+ /* Win32 notes: as moral equivalents of backtrace() + dladdr(),
+ * one could possibly first use GetCurrentProcess() +
+ * SymInitialize(), and then CaptureStackBackTrace() +
+ * SymFromAddr(). */
+
+ /* Note that using the compiler optimizer easily leads into much
+ * of this information, like the symbol names (think inlining),
+ * and source code locations getting lost or confused. In many
+ * cases keeping the debug information (-g) is necessary.
+ *
+ * Note that for example with gcc you can do both -O and -g.
+ *
+ * Note, however, that on some platforms (e.g. OSX + clang (cc))
+ * backtrace() + dladdr() works fine without -g. */
+
+ /* For example: the mere presence of <bfd.h> is no guarantee: e.g.
+ * OS X has that, but BFD does not seem to work on the OSX executables.
+ *
+ * Another niceness would be to able to see something about
+ * the function arguments, however gdb/lldb manage to do that. */
+} Perl_c_backtrace_frame;
+
+typedef struct {
+ Perl_c_backtrace_header header;
+ Perl_c_backtrace_frame frame_info[1];
+ /* After the header come:
+ * (1) header.frame_count frames
+ * (2) frame_count times the \0-terminated strings (object_name
+ * and so forth). The frames contain the pointers to the starts
+ * of these strings, and the lengths of these strings. */
+} Perl_c_backtrace;
+
+#define Perl_free_c_backtrace(bt) Safefree(bt)
+
+#endif /* USE_C_BACKTRACE */
+
+/*
+ * Local variables:
+ * c-indentation-style: bsd
+ * c-basic-offset: 4
+ * indent-tabs-mode: nil
+ * End:
+ *
+ * ex: set ts=8 sts=4 sw=4 et:
+ */
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