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handy.h
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handy.h
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/* handy.h
*
* Copyright (c) 1991-1994, Larry Wall
*
* You may distribute under the terms of either the GNU General Public
* License or the Artistic License, as specified in the README file.
*
*/
#if !defined(__STDC__)
#ifdef NULL
#undef NULL
#endif
#ifndef I286
# define NULL 0
#else
# define NULL 0L
#endif
#endif
#define Null(type) ((type)NULL)
#define Nullch Null(char*)
#define Nullfp Null(PerlIO*)
#define Nullsv Null(SV*)
#ifdef TRUE
#undef TRUE
#endif
#ifdef FALSE
#undef FALSE
#endif
#define TRUE (1)
#define FALSE (0)
/* XXX Configure ought to have a test for a boolean type, if I can
just figure out all the headers such a test needs.
Andy Dougherty August 1996
*/
/* bool is built-in for g++-2.6.3, which might be used for an extension.
If the extension includes <_G_config.h> before this file then
_G_HAVE_BOOL will be properly set. If, however, the extension includes
this file first, then you will have to manually set -DHAS_BOOL in
your command line to avoid a conflict.
*/
#ifdef _G_HAVE_BOOL
# if _G_HAVE_BOOL
# ifndef HAS_BOOL
# define HAS_BOOL 1
# endif
# endif
#endif
/* The NeXT dynamic loader headers will not build with the bool macro
So declare them now to clear confusion.
*/
#ifdef NeXT
# undef FALSE
# undef TRUE
typedef enum bool { FALSE = 0, TRUE = 1 } bool;
# define ENUM_BOOL 1
# ifndef HAS_BOOL
# define HAS_BOOL 1
# endif /* !HAS_BOOL */
#endif /* NeXT */
#ifndef HAS_BOOL
# ifdef UTS
# define bool int
# else
# define bool char
# endif
#endif
/* XXX A note on the perl source internal type system. The
original intent was that I32 be *exactly* 32 bits.
Currently, we only guarantee that I32 is *at least* 32 bits.
Specifically, if int is 64 bits, then so is I32. (This is the case
for the Cray.) This has the advantage of meshing nicely with
standard library calls (where we pass an I32 and the library is
expecting an int), but the disadvantage that an I32 is not 32 bits.
Andy Dougherty August 1996
In the future, we may perhaps want to think about something like
#if INTSIZE == 4
typedef I32 int;
#else
# if LONGSIZE == 4
typedef I32 long;
# else
# if SHORTSIZE == 4
typedef I32 short;
# else
typedef I32 int;
# endif
# endif
#endif
For the moment, these are mentioned here so metaconfig will
construct Configure to figure out the various sizes.
*/
typedef char I8;
typedef unsigned char U8;
/* I8_MAX and I8_MIN constants are not defined, as I8 is an ambiguous type.
Please search CHAR_MAX in perl.h for further details. */
#define U8_MAX PERL_UCHAR_MAX
#define U8_MIN PERL_UCHAR_MIN
typedef short I16;
typedef unsigned short U16;
#define I16_MAX PERL_SHORT_MAX
#define I16_MIN PERL_SHORT_MIN
#define U16_MAX PERL_USHORT_MAX
#define U16_MIN PERL_USHORT_MIN
#if BYTEORDER > 0x4321
typedef int I32;
typedef unsigned int U32;
# define I32_MAX PERL_INT_MAX
# define I32_MIN PERL_INT_MIN
# define U32_MAX PERL_UINT_MAX
# define U32_MIN PERL_UINT_MIN
#else
typedef long I32;
typedef unsigned long U32;
# define I32_MAX PERL_LONG_MAX
# define I32_MIN PERL_LONG_MIN
# define U32_MAX PERL_ULONG_MAX
# define U32_MIN PERL_ULONG_MIN
#endif
#define Ctl(ch) ((ch) & 037)
#define strNE(s1,s2) (strcmp(s1,s2))
#define strEQ(s1,s2) (!strcmp(s1,s2))
#define strLT(s1,s2) (strcmp(s1,s2) < 0)
#define strLE(s1,s2) (strcmp(s1,s2) <= 0)
#define strGT(s1,s2) (strcmp(s1,s2) > 0)
#define strGE(s1,s2) (strcmp(s1,s2) >= 0)
#define strnNE(s1,s2,l) (strncmp(s1,s2,l))
#define strnEQ(s1,s2,l) (!strncmp(s1,s2,l))
#ifdef HAS_MEMCMP
# define memNE(s1,s2,l) (memcmp(s1,s2,l))
# define memEQ(s1,s2,l) (!memcmp(s1,s2,l))
#else
# define memNE(s1,s2,l) (bcmp(s1,s2,l))
# define memEQ(s1,s2,l) (!bcmp(s1,s2,l))
#endif
/*
* Character classes.
*
* Unfortunately, the introduction of locales means that we
* can't trust isupper(), etc. to tell the truth. And when
* it comes to /\w+/ with tainting enabled, we *must* be able
* to trust our character classes.
*
* Therefore, the default tests in the text of Perl will be
* independent of locale. Any code that wants to depend on
* the current locale will use the tests that begin with "lc".
*/
#ifdef HAS_SETLOCALE /* XXX Is there a better test for this? */
# ifndef CTYPE256
# define CTYPE256
# endif
#endif
#define isALNUM(c) (isALPHA(c) || isDIGIT(c) || (c) == '_')
#define isIDFIRST(c) (isALPHA(c) || (c) == '_')
#define isALPHA(c) (isUPPER(c) || isLOWER(c))
#define isSPACE(c) \
((c) == ' ' || (c) == '\t' || (c) == '\n' || (c) =='\r' || (c) == '\f')
#define isDIGIT(c) ((c) >= '0' && (c) <= '9')
#define isUPPER(c) ((c) >= 'A' && (c) <= 'Z')
#define isLOWER(c) ((c) >= 'a' && (c) <= 'z')
#define isPRINT(c) (((c) > 32 && (c) < 127) || isSPACE(c))
#define toUPPER(c) (isLOWER(c) ? (c) - ('a' - 'A') : (c))
#define toLOWER(c) (isUPPER(c) ? (c) + ('a' - 'A') : (c))
#ifdef USE_NEXT_CTYPE
# define isALNUM_LC(c) \
(NXIsAlpha((unsigned int)(c)) || NXIsDigit((unsigned int)(c)) || \
(char)(c) == '_')
# define isIDFIRST_LC(c) \
(NXIsAlpha((unsigned int)(c)) || (char)(c) == '_')
# define isALPHA_LC(c) NXIsAlpha((unsigned int)(c))
# define isSPACE_LC(c) NXIsSpace((unsigned int)(c))
# define isDIGIT_LC(c) NXIsDigit((unsigned int)(c))
# define isUPPER_LC(c) NXIsUpper((unsigned int)(c))
# define isLOWER_LC(c) NXIsLower((unsigned int)(c))
# define isPRINT_LC(c) NXIsPrint((unsigned int)(c))
# define toUPPER_LC(c) NXToUpper((unsigned int)(c))
# define toLOWER_LC(c) NXToLower((unsigned int)(c))
#else /* !USE_NEXT_CTYPE */
# if defined(CTYPE256) || (!defined(isascii) && !defined(HAS_ISASCII))
# define isALNUM_LC(c) \
(isalpha((unsigned char)(c)) || \
isdigit((unsigned char)(c)) || (char)(c) == '_')
# define isIDFIRST_LC(c) (isalpha((unsigned char)(c)) || (char)(c) == '_')
# define isALPHA_LC(c) isalpha((unsigned char)(c))
# define isSPACE_LC(c) isspace((unsigned char)(c))
# define isDIGIT_LC(c) isdigit((unsigned char)(c))
# define isUPPER_LC(c) isupper((unsigned char)(c))
# define isLOWER_LC(c) islower((unsigned char)(c))
# define isPRINT_LC(c) isprint((unsigned char)(c))
# define toUPPER_LC(c) toupper((unsigned char)(c))
# define toLOWER_LC(c) tolower((unsigned char)(c))
# else
# define isALNUM_LC(c) \
(isascii(c) && (isalpha(c) || isdigit(c) || (c) == '_'))
# define isIDFIRST_LC(c) (isascii(c) && (isalpha(c) || (c) == '_'))
# define isALPHA_LC(c) (isascii(c) && isalpha(c))
# define isSPACE_LC(c) (isascii(c) && isspace(c))
# define isDIGIT_LC(c) (isascii(c) && isdigit(c))
# define isUPPER_LC(c) (isascii(c) && isupper(c))
# define isLOWER_LC(c) (isascii(c) && islower(c))
# define isPRINT_LC(c) (isascii(c) && isprint(c))
# define toUPPER_LC(c) toupper(c)
# define toLOWER_LC(c) tolower(c)
# endif
#endif /* USE_NEXT_CTYPE */
/* This conversion works both ways, strangely enough. */
#define toCTRL(c) (toUPPER(c) ^ 64)
/* Line numbers are unsigned, 16 bits. */
typedef U16 line_t;
#ifdef lint
#define NOLINE ((line_t)0)
#else
#define NOLINE ((line_t) 65535)
#endif
/* XXX LEAKTEST doesn't really work in perl5. There are direct calls to
safemalloc() in the source, so LEAKTEST won't pick them up.
Further, if you try LEAKTEST, you'll also end up calling
Safefree, which might call safexfree() on some things that weren't
malloced with safexmalloc. The correct "fix" to this, if anyone
is interested, is to ensure that all calls go through the New and
Renew macros.
--Andy Dougherty August 1996
*/
#ifndef lint
#ifndef LEAKTEST
#define New(x,v,n,t) (v = (t*)safemalloc((MEM_SIZE)((n)*sizeof(t))))
#define Newc(x,v,n,t,c) (v = (c*)safemalloc((MEM_SIZE)((n)*sizeof(t))))
#define Newz(x,v,n,t) (v = (t*)safemalloc((MEM_SIZE)((n)*sizeof(t)))), \
memzero((char*)(v), (n)*sizeof(t))
#define Renew(v,n,t) \
(v = (t*)saferealloc((Malloc_t)(v),(MEM_SIZE)((n)*sizeof(t))))
#define Renewc(v,n,t,c) \
(v = (c*)saferealloc((Malloc_t)(v),(MEM_SIZE)((n)*sizeof(t))))
#define Safefree(d) safefree((Malloc_t)(d))
#define NEWSV(x,len) newSV(len)
#else /* LEAKTEST */
#define New(x,v,n,t) (v = (t*)safexmalloc((x),(MEM_SIZE)((n)*sizeof(t))))
#define Newc(x,v,n,t,c) (v = (c*)safexmalloc((x),(MEM_SIZE)((n)*sizeof(t))))
#define Newz(x,v,n,t) (v = (t*)safexmalloc((x),(MEM_SIZE)((n)*sizeof(t)))), \
memzero((char*)(v), (n)*sizeof(t))
#define Renew(v,n,t) \
(v = (t*)safexrealloc((Malloc_t)(v),(MEM_SIZE)((n)*sizeof(t))))
#define Renewc(v,n,t,c) \
(v = (c*)safexrealloc((Malloc_t)(v),(MEM_SIZE)((n)*sizeof(t))))
#define Safefree(d) safexfree((Malloc_t)d)
#define NEWSV(x,len) newSV(x,len)
#define MAXXCOUNT 1200
long xcount[MAXXCOUNT];
long lastxcount[MAXXCOUNT];
#endif /* LEAKTEST */
#define Move(s,d,n,t) (void)memmove((char*)(d),(char*)(s), (n) * sizeof(t))
#define Copy(s,d,n,t) (void)memcpy((char*)(d),(char*)(s), (n) * sizeof(t))
#define Zero(d,n,t) (void)memzero((char*)(d), (n) * sizeof(t))
#else /* lint */
#define New(x,v,n,s) (v = Null(s *))
#define Newc(x,v,n,s,c) (v = Null(s *))
#define Newz(x,v,n,s) (v = Null(s *))
#define Renew(v,n,s) (v = Null(s *))
#define Move(s,d,n,t)
#define Copy(s,d,n,t)
#define Zero(d,n,t)
#define Safefree(d) (d) = (d)
#endif /* lint */
#ifdef USE_STRUCT_COPY
#define StructCopy(s,d,t) (*((t*)(d)) = *((t*)(s)))
#else
#define StructCopy(s,d,t) Copy(s,d,1,t)
#endif