Список говнокодов пользователя j123123

Всего: 343

C++ / Говнокод #27810

+1

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// https://github.com/gcc-mirror/gcc/blob/b0c83d59f44bf677c8d74acae228acf32719acb3/libstdc%2B%2B-v3/include/bits/regex_compiler.tcc#L446
  template<typename _TraitsT>
  template<bool __icase, bool __collate>
    bool
    _Compiler<_TraitsT>::
    _M_expression_term(pair<bool, _CharT>& __last_char,
		       _BracketMatcher<_TraitsT, __icase, __collate>& __matcher)
    {
      if (_M_match_token(_ScannerT::_S_token_bracket_end))
	return false;

      const auto __push_char = [&](_CharT __ch)
      {
	if (__last_char.first)
	  __matcher._M_add_char(__last_char.second);
	else
	  __last_char.first = true;
	__last_char.second = __ch;
      };
      const auto __flush = [&]
      {
	if (__last_char.first)
	  {
	    __matcher._M_add_char(__last_char.second);
	    __last_char.first = false;
	  }
      };

      if (_M_match_token(_ScannerT::_S_token_collsymbol))
	{
	  auto __symbol = __matcher._M_add_collate_element(_M_value);
	  if (__symbol.size() == 1)
	    __push_char(__symbol[0]);
	  else
	    __flush();
	}
      else if (_M_match_token(_ScannerT::_S_token_equiv_class_name))
	{
	  __flush();
	  __matcher._M_add_equivalence_class(_M_value);
	}
      else if (_M_match_token(_ScannerT::_S_token_char_class_name))
	{
	  __flush();
	  __matcher._M_add_character_class(_M_value, false);
	}
      else if (_M_try_char())
	__push_char(_M_value[0]);
      // POSIX doesn't allow '-' as a start-range char (say [a-z--0]),
      // except when the '-' is the first or last character in the bracket
      // expression ([--0]). ECMAScript treats all '-' after a range as a
      // normal character. Also see above, where _M_expression_term gets called.
      //
      // As a result, POSIX rejects [-----], but ECMAScript doesn't.
      // Boost (1.57.0) always uses POSIX style even in its ECMAScript syntax.
      // Clang (3.5) always uses ECMAScript style even in its POSIX syntax.
      //
      // It turns out that no one reads BNFs ;)
      else if (_M_match_token(_ScannerT::_S_token_bracket_dash))
	{
	  if (!__last_char.first)
	    {
	      if (!(_M_flags & regex_constants::ECMAScript))
		{
		  if (_M_match_token(_ScannerT::_S_token_bracket_end))
		    {
		      __push_char('-');
		      return false;
		    }
		  __throw_regex_error(
		    regex_constants::error_range,
		    "Unexpected dash in bracket expression. For POSIX syntax, "
		    "a dash is not treated literally only when it is at "
		    "beginning or end.");
		}
	      __push_char('-');
	    }
	  else
	    {
	      if (_M_try_char())
		{
		  __matcher._M_make_range(__last_char.second, _M_value[0]);
		  __last_char.first = false;
		}
	      else if (_M_match_token(_ScannerT::_S_token_bracket_dash))
		{
		  __matcher._M_make_range(__last_char.second, '-');
		  __last_char.first = false;
		}
	      else
		{
		  if (_M_scanner._M_get_token()
		      != _ScannerT::_S_token_bracket_end)
		    __throw_regex_error(
		      regex_constants::error_range,
		      "Character is expected after a dash.");
		  __push_char('-');
		}
	    }
	}

Читаю тут реализацию стандартной говнокрестовой библиотеки из GCC
Какой багор )))

j123123, 10 Ноября 2021

Комментарии (54)

Си / Говнокод #27807

+1

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// https://github.com/j123123/sexpr_parse/blob/584fc23de71bebe02545214f819e16b720a2c1e2/my_struct_utils.c#L119

blob *
blob_scan_fromstream
(
  FILE *stream
)
{
  size_t st_len = 0;
  size_t st_alloc;
  uint8_t *st = NULL;

  while(true)
  {
    const int fg = getc(stream);
    if(fg == EOF)
    {
      PRV_ERR_MACRO();
    }
    uint8_t c = fg;
    if(!isprint(fg))
    {
      PRV_ERR_MACRO();
    }
    switch(c)
    {
      case '\\':
        {
          int c2 = getc(stream);
          switch(c2)
          {
            case 'x':
              {
                int c3[2] =
                {
                  getc(stream),
                  getc(stream)
                };
                uint8_t tmp[2];

                for(size_t i = 0; i < 2; ++i)
                {
                  switch(c3[i])
                  {
                    case '0' ... '9':
                      tmp[i] = c3[i]-'0';
                      break;
                    case 'a' ... 'f':
                      tmp[i] = c3[i]+10-'a';
                      break;
                    case 'A' ... 'F':
                      tmp[i] = c3[i]+10-'A';
                      break;
                    default:
                      PRV_ERR_MACRO();
                  }
                }
                M_PUSH(tmp[1] | tmp[0] << 4);
              }
              break;
            case '\\':
              M_PUSH('\\');
              break;
            case 't':
              M_PUSH('\t');
              break;
            case 'n':
              M_PUSH('\n');
              break;
            case '"':
              M_PUSH('"');
              break;
            default:
              PRV_ERR_MACRO();
          }
        }
        break;
//      case '\t':
//      case '\n':
//        PRV_ERR_MACRO();
//        break;
      case '"':
        goto end;
      default:
        M_PUSH(c);
    }
  }

end:
  ;
  blob *tmp = blob_init(st_len, st);
  PRV_FREE(st);
  return tmp;
}

Эта вот хрень вычитывает из "FILE *" одно "слово".

j123123, 09 Ноября 2021

Комментарии (97)

Си / Говнокод #27792

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// https://github.com/dxFeed/dxfeed-c-api/blob/8f24055298c9751344db72da03ab8eb37dfeb6a5/src/DXAlgorithms.h#L63

#define CHECKED_CALL(func, param) \
	do { \
		if (!func(param)) { \
			return false; \
		} \
	} while (false)

#define CHECKED_CALL_0(func) \
	do { \
		if (!func()) { \
			return false; \
		} \
	} while (false)

#define CHECKED_CALL_1(func, param1) \
	do { \
		if (!func(param1)) { \
			return false; \
		} \
	} while (false)

#define CHECKED_CALL_2(func, param1, param2) \
	do { \
		if (!func(param1, param2)) { \
			return false; \
		} \
	} while (false)

#define CHECKED_CALL_3(func, param1, param2, param3) \
	do { \
		if (!func(param1, param2, param3)) { \
			return false; \
		} \
	} while (false)

#define CHECKED_CALL_4(func, param1, param2, param3, param4) \
	do { \
		if (!func(param1, param2, param3, param4)) { \
			return false; \
		} \
	} while (false)

#define CHECKED_CALL_5(func, param1, param2, param3, param4, param5) \
	do { \
		if (!func(param1, param2, param3, param4, param5)) { \
			return false; \
		} \
	} while (false)

Мокроебства

j123123, 05 Ноября 2021

Комментарии (11)

Си / Говнокод #27760

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/* https://github.com/v7unix/v7unix/blob/ed636a47207476db76d53b7869447889dee3bbad/v7/usr/src/cmd/sh/mac.h */

#
/*
 *	UNIX shell
 *
 *	S. R. Bourne
 *	Bell Telephone Laboratories
 *
 */

#define LOCAL	static
#define PROC	extern
#define TYPE	typedef
#define STRUCT	TYPE struct
#define UNION	TYPE union
#define REG	register

#define IF	if(
#define THEN	){
#define ELSE	} else {
#define ELIF	} else if (
#define FI	;}

#define BEGIN	{
#define END	}
#define SWITCH	switch(
#define IN	){
#define ENDSW	}
#define FOR	for(
#define WHILE	while(
#define DO	){
#define OD	;}
#define REP	do{
#define PER	}while(
#define DONE	);
#define LOOP	for(;;){
#define POOL	}


#define SKIP	;
#define DIV	/
#define REM	%
#define NEQ	^
#define ANDF	&&
#define ORF	||

#define TRUE	(-1)
#define FALSE	0
#define LOBYTE	0377
#define STRIP	0177
#define QUOTE	0200

#define EOF	0
#define NL	'\n'
#define SP	' '
#define LQ	'`'
#define RQ	'\''
#define MINUS	'-'
#define COLON	':'

#define MAX(a,b)	((a)>(b)?(a):(b))

j123123, 20 Октября 2021

Комментарии (76)

Си / Говнокод #27753

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// https://github.com/x42/darc.lv2/blob/7f1f42b879777e570c83fd566ac28cbfdd51e6fc/src/lv2.c#L508
static void
create_pattern (Darc* self, const double w)
{
	const int x0 = floor (w * 0.05);
	const int x1 = ceil (w * 0.95);
	const int wd = x1 - x0;

#define DEF(x) ((x0 + wd * ((x) + 20.) / 60.) / w)

	cairo_pattern_t* pat = cairo_pattern_create_linear (0.0, 0.0, w, 0);
	/* clang-format off */
	cairo_pattern_add_color_stop_rgba (pat, 1.0,       .0, .5, .0, 0);
	cairo_pattern_add_color_stop_rgba (pat, DEF (40),  .0, .5, .0, 0.5);
	cairo_pattern_add_color_stop_rgba (pat, DEF (5),   .0, .5, .0, 0.5);
	cairo_pattern_add_color_stop_rgba (pat, DEF (-5),  .5, .0, .0, 0.5);
	cairo_pattern_add_color_stop_rgba (pat, DEF (-20), .5, .0, .0, 0.5);
	cairo_pattern_add_color_stop_rgba (pat, 0.0,       .5, .0, .0, 0);
	/* clang-format on */
	self->mpat = pat;

	pat = cairo_pattern_create_linear (0.0, 0.0, w, 0);
	/* clang-format off */
	cairo_pattern_add_color_stop_rgba (pat, 1.0,       .1, .9, .1, 0);
	cairo_pattern_add_color_stop_rgba (pat, DEF (40),  .1, .9, .1, 1);
	cairo_pattern_add_color_stop_rgba (pat, DEF (5),   .1, .9, .1, 1);
	cairo_pattern_add_color_stop_rgba (pat, DEF (-5),  .9, .9, .1, 1);
	cairo_pattern_add_color_stop_rgba (pat, DEF (-20), .9, .9, .1, 1);
	cairo_pattern_add_color_stop_rgba (pat, 0.0,       .9, .9, .1, 0);
	/* clang-format on */
	self->cpat = pat;

#undef DEF
}

Отключаем и включаем clang-формат, чтобы отступы красиво были. Да еще и такой вот локальный дефайн!

j123123, 17 Октября 2021

Комментарии (116)

Куча / Говнокод #27668

+2

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(* https://coq.inria.fr/library/Coq.Init.Datatypes.html *)

(* Basic boolean operators *)

Definition andb (b1 b2:bool) : bool := if b1 then b2 else false.

Definition orb (b1 b2:bool) : bool := if b1 then true else b2.

Definition implb (b1 b2:bool) : bool := if b1 then b2 else true.

Definition xorb (b1 b2:bool) : bool :=
  match b1, b2 with
    | true, true => false
    | true, false => true
    | false, true => true
    | false, false => false
  end.

Definition negb (b:bool) := if b then false else true.

Infix "||" := orb : bool_scope.
Infix "&&" := andb : bool_scope.

На первый взгляд этот ваш Coq (питух) выглядит как очередной ML-язычок.

j123123, 16 Сентября 2021

Комментарии (170)

Си / Говнокод #27641

+1

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// https://github.com/layerfsd/WorkPlatForm/blob/f14a8cdd2bc3772ea4bd37a0381f5f8305a0a2c2/Common/BuilDefine.h

// source file build_defs.h

#ifndef BUILD_DEFS_H

#define BUILD_DEFS_H

#define VERSION_MAJOR 1
// Example of __DATE__ string: "Jul 27 2012"
//                              01234567890

#define BUILD_YEAR_CH0 (__DATE__[ 7])
#define BUILD_YEAR_CH1 (__DATE__[ 8])
#define BUILD_YEAR_CH2 (__DATE__[ 9])
#define BUILD_YEAR_CH3 (__DATE__[10])


#define BUILD_MONTH_IS_JAN (__DATE__[0] == 'J' && __DATE__[1] == 'a' && __DATE__[2] == 'n')
#define BUILD_MONTH_IS_FEB (__DATE__[0] == 'F')
#define BUILD_MONTH_IS_MAR (__DATE__[0] == 'M' && __DATE__[1] == 'a' && __DATE__[2] == 'r')
#define BUILD_MONTH_IS_APR (__DATE__[0] == 'A' && __DATE__[1] == 'p')
#define BUILD_MONTH_IS_MAY (__DATE__[0] == 'M' && __DATE__[1] == 'a' && __DATE__[2] == 'y')
#define BUILD_MONTH_IS_JUN (__DATE__[0] == 'J' && __DATE__[1] == 'u' && __DATE__[2] == 'n')
#define BUILD_MONTH_IS_JUL (__DATE__[0] == 'J' && __DATE__[1] == 'u' && __DATE__[2] == 'l')
#define BUILD_MONTH_IS_AUG (__DATE__[0] == 'A' && __DATE__[1] == 'u')
#define BUILD_MONTH_IS_SEP (__DATE__[0] == 'S')
#define BUILD_MONTH_IS_OCT (__DATE__[0] == 'O')
#define BUILD_MONTH_IS_NOV (__DATE__[0] == 'N')
#define BUILD_MONTH_IS_DEC (__DATE__[0] == 'D')


#define BUILD_MONTH_CH0 \
	((BUILD_MONTH_IS_OCT || BUILD_MONTH_IS_NOV || BUILD_MONTH_IS_DEC) ? '1' : '0')

#define BUILD_MONTH_CH1 \
	( \
	(BUILD_MONTH_IS_JAN) ? '1' : \
	(BUILD_MONTH_IS_FEB) ? '2' : \
	(BUILD_MONTH_IS_MAR) ? '3' : \
	(BUILD_MONTH_IS_APR) ? '4' : \
	(BUILD_MONTH_IS_MAY) ? '5' : \
	(BUILD_MONTH_IS_JUN) ? '6' : \
	(BUILD_MONTH_IS_JUL) ? '7' : \
	(BUILD_MONTH_IS_AUG) ? '8' : \
	(BUILD_MONTH_IS_SEP) ? '9' : \
	(BUILD_MONTH_IS_OCT) ? '0' : \
	(BUILD_MONTH_IS_NOV) ? '1' : \
	(BUILD_MONTH_IS_DEC) ? '2' : \
	/* error default */    '?' \
	)

#define BUILD_DAY_CH0 ((__DATE__[4] >= '0') ? (__DATE__[4]) : '0')
#define BUILD_DAY_CH1 (__DATE__[ 5])


#define BUILD_HOUR_CH0 (__TIME__[0])
#define BUILD_HOUR_CH1 (__TIME__[1])

#define BUILD_MIN_CH0 (__TIME__[3])
#define BUILD_MIN_CH1 (__TIME__[4])

#define BUILD_SEC_CH0 (__TIME__[6])
#define BUILD_SEC_CH1 (__TIME__[7])


#if VERSION_MAJOR > 100

#define VERSION_MAJOR_INIT \
	((VERSION_MAJOR / 100) + '0'), \
	(((VERSION_MAJOR % 100) / 10) + '0'), \
	((VERSION_MAJOR % 10) + '0')

#elif VERSION_MAJOR > 10

#define VERSION_MAJOR_INIT \
	((VERSION_MAJOR / 10) + '0'), \
	((VERSION_MAJOR % 10) + '0')

#else

#define VERSION_MAJOR_INIT \
	(VERSION_MAJOR + '0')

#endif


#endif // BUILD_DEFS_H

Генерация даты через разковыривание макроса __DATE__

j123123, 03 Сентября 2021

Комментарии (14)

Куча / Говнокод #27633

+2

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// https://wandbox.org/permlink/rAilQ54oYBNsHJ3W

struct blob_p(T,alias t_xmalloc,alias t_free)
{
  blob!(T)* bl_p;

  size_t
  getlen
  (
  ) @trusted
  in
  {
    assert(bl_p != null);
  }
  do
  {
    return bl_p.len;
  }

  T*
  getdata
  (
  ) @trusted
  in
  {
    assert(this.bl_p != null);
  }
  do
  {
    return cast(T*)bl_p.data;
  }


  static bool
  cmp
  (
    typeof(this) a,
    typeof(this) b
  ) @trusted
  in
  {
    assert(a.bl_p != null);
    assert(b.bl_p != null);
  }
  do
  {
    if (a.bl_p.len != b.bl_p.len)
    {
      return false;
    }
    if(memcmp(cast(void*)a.bl_p.data, cast(void*)b.bl_p.data, a.bl_p.len * T.sizeof) != 0)
    {
      return false;
    }
    return true;
  }

  bool
  cmp
  (
    typeof(this) a
  ) @trusted
  in
  {
    assert(a.bl_p != null);
    assert(this.bl_p != null);
  }
  do
  {
    if (a.bl_p.len != this.bl_p.len)
    {
      return false;
    }
    if(memcmp(cast(void*)a.bl_p.data, cast(void*)bl_p.data, a.bl_p.len * T.sizeof) != 0)
    {
      return false;
    }
    return true;
  }

  T opIndex(size_t i)
  in
  {
    assert(bl_p != null);
    assert(bl_p.len > i);
  }
  do
  {
    return getdata()[i];
  }

  ~this()
  /*in
  {
    assert (cast(void*)bl_p != null);
  }
  do*/
  {
    t_free(cast(void*)bl_p);
  }

Попробовал написать на "D" своего рода "массив" с известно каким размером

j123123, 31 Августа 2021

Комментарии (88)

Си / Говнокод #27629

+1

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// https://github.com/mailru/confetti/blob/63ed82c65a7fbcd2baf8a67f1b7410e044dfd1dd/h_dump.c#L44

static void
dumpParamDef(FILE *fh, char* name, ParamDef *def) {
	
	dumpComment(fh, def, 1);
	
	switch(def->paramType) {
		case	int32Type:
			fprintf(fh, "\tint32_t\t%s;\n", def->name);
			break;
		case	uint32Type:
			fprintf(fh, "\tu_int32_t\t%s;\n", def->name);
			break;
		case	int64Type:
			fprintf(fh, "\tint64_t\t%s;\n", def->name);
			break;
		case	uint64Type:
			fprintf(fh, "\tu_int64_t\t%s;\n", def->name);
			break;
		case	doubleType:
			fprintf(fh, "\tdouble\t%s;\n", def->name);
			break;
		case	stringType:
			fprintf(fh, "\tchar*\t%s;\n", def->name);
			break;
		case	boolType:
			fprintf(fh, "\tconfetti_bool_t\t%s;\n", def->name);
			break;
		case	commentType:
			fprintf(stderr, "Unexpected comment"); 
			break;
		case	structType:
			fprintf(fh, "\t%s", name);
			dumpStructName(fh, def->paramValue.structval, "_");
			fprintf(fh, "*\t%s;\n", def->name);
			break;
		case	arrayType:
			fprintf(fh, "\t%s", name);
			dumpStructName(fh, def->paramValue.arrayval->paramValue.structval, "_");
			fprintf(fh, "**\t%s;\n", def->name);
			break;
		case 	builtinType:
			break;
		default:
			fprintf(stderr,"Unknown paramType (%d)\n", def->paramType);
			exit(1);
	}
}

Какое же говно эта ваша сишка. А в крестоговне эта задача легко и элегантно решается, правда ведь?

j123123, 30 Августа 2021

Комментарии (94)

C++ / Говнокод #27568

+2

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// https://github.com/seanbaxter/circle/blob/master/examples/README.md#tldr
// ...
// Circle's primary syntactic element is the @meta keyword, which runs the prefixed statement
// during source translation (or during template instantiation in dependent contexts).

// https://github.com/seanbaxter/circle/blob/master/examples/README.md#same-language-reflection
// duff1.cxx

void duff_copy1(char* dest, const char* source, size_t count) {
  const char* end = source + count;
  while(size_t count = end - source) {
    switch(count % 8) {
      case 0: *dest++ = *source++; // Fall-through to case 7
      case 7: *dest++ = *source++; // Fall-through to case 6...
      case 6: *dest++ = *source++;
      case 5: *dest++ = *source++;
      case 4: *dest++ = *source++;
      case 3: *dest++ = *source++;
      case 2: *dest++ = *source++;
      case 1: *dest++ = *source++;
      break;
    }
  }
}

// Reproduced above is a simplified version of Duff's device, an infamous memcpy function designed
// to reduce the amount of branching in the operation. (The loop is optimally interleaved with the switch,
// but I'm trying to illustrate some other points and don't want to add to the confusion.) Once we enter the
// switch, perform an assignment and unconditionally progress to the next case statement. This algorithm
// cries out for automation. The case statements have indices that run from 8 down to 1, modulo 8. Can we give it the Circle treatment?

// duff2.cxx

void duff_copy2(char* dest, const char* source, size_t count) {
  const char* end = source + count;
  while(size_t count = end - source) {
    switch(count % 8) {
      @meta for(int i = 8; i > 0; --i)
        case i % 8: *dest++ = *source++;
      break;
    }
  }

Но гомоиконности таким подкостыливанием вы естественно не добавите!

j123123, 14 Августа 2021

Комментарии (21)

Говнокод: по колено в коде.