char.c File Reference (original) (raw)

#include "[postgres.h](postgres%5F8h%5Fsource.html)"
#include <limits.h>
#include "[libpq/pqformat.h](pqformat%5F8h%5Fsource.html)"
#include "utils/fmgrprotos.h"
#include "[varatt.h](varatt%5F8h%5Fsource.html)"

Include dependency graph for char.c:

Go to the source code of this file.

Macros
#define	ISOCTAL(c) (((c) >= '0') && ((c) <= '7'))

#define	TOOCTAL(c) ((c) + '0')

#define	FROMOCTAL(c) ((unsigned char) (c) - '0')

Functions
Datum	charin (PG_FUNCTION_ARGS)

Datum	charout (PG_FUNCTION_ARGS)

Datum	charrecv (PG_FUNCTION_ARGS)

Datum	charsend (PG_FUNCTION_ARGS)

Datum	chareq (PG_FUNCTION_ARGS)

Datum	charne (PG_FUNCTION_ARGS)

Datum	charlt (PG_FUNCTION_ARGS)

Datum	charle (PG_FUNCTION_ARGS)

Datum	chargt (PG_FUNCTION_ARGS)

Datum	charge (PG_FUNCTION_ARGS)

Datum	chartoi4 (PG_FUNCTION_ARGS)

Datum	i4tochar (PG_FUNCTION_ARGS)

Datum	text_char (PG_FUNCTION_ARGS)

Datum	char_text (PG_FUNCTION_ARGS)

Macro Definition Documentation

◆ FROMOCTAL

◆ ISOCTAL

| #define ISOCTAL | ( | | c | ) | (((c) >= '0') && ((c) <= '7')) | | --------------------------------------------------------------------------- | - | | --------------------------------------------------------------- | - | ---------------------------------------------------------------------------------------------------------------------------------------------------------- |

Definition at line 24 of file char.c.

◆ TOOCTAL

Function Documentation

◆ char_text()

Definition at line 228 of file char.c.

229{

232

233 /*

234 * Conversion rules are the same as in charout(), but here we need to be

235 * honest about converting 0x00 to an empty string.

236 */

238 {

240 (VARDATA(result))[0] = '\\';

244 }

245 else if (arg1 != '\0')

246 {

249 }

250 else

252

254}

#define IS_HIGHBIT_SET(ch)

#define PG_GETARG_CHAR(n)

#define PG_RETURN_TEXT_P(x)

static char * VARDATA(const void *PTR)

static void SET_VARSIZE(void *PTR, Size len)

References fb(), IS_HIGHBIT_SET, palloc(), PG_GETARG_CHAR, PG_RETURN_TEXT_P, SET_VARSIZE(), TOOCTAL, VARDATA(), and VARHDRSZ.

◆ chareq()

◆ charge()

◆ chargt()

◆ charin()

◆ charle()

◆ charlt()

◆ charne()

◆ charout()

Definition at line 64 of file char.c.

65{

67 char *result = (char *) palloc(5);

70 {

71 result[0] = '\\';

72 result[1] = TOOCTAL(((unsigned char) ch) >> 6);

73 result[2] = TOOCTAL((((unsigned char) ch) >> 3) & 07);

74 result[3] = TOOCTAL(((unsigned char) ch) & 07);

75 result[4] = '\0';

76 }

77 else

78 {

79 /* This produces acceptable results for 0x00 as well */

80 result[0] = ch;

81 result[1] = '\0';

82 }

84}

#define PG_RETURN_CSTRING(x)

References fb(), IS_HIGHBIT_SET, palloc(), PG_GETARG_CHAR, PG_RETURN_CSTRING, and TOOCTAL.

◆ charrecv()

◆ charsend()

◆ chartoi4()

◆ i4tochar()

◆ text_char()

Definition at line 204 of file char.c.

205{

208 char result;

209

210 /*

211 * Conversion rules are the same as in charin(), but here we need to

212 * handle the empty-string case honestly.

213 */

220 result = ch[0];

221 else

222 result = '\0';

223

225}

#define PG_GETARG_TEXT_PP(n)

static Size VARSIZE_ANY_EXHDR(const void *PTR)

static char * VARDATA_ANY(const void *PTR)

References fb(), FROMOCTAL, ISOCTAL, PG_GETARG_TEXT_PP, PG_RETURN_CHAR, VARDATA_ANY(), and VARSIZE_ANY_EXHDR().