glib/glib/gstrfuncs.h
Philip Withnall c849a4ddd3 glib: Drop G_GNUC_MALLOC usage from various other allocation functions
These functions may be OK to leave the G_GNUC_MALLOC attribute on,
because the only valid pointers in the storage areas they return are,
themselves, new pointers.

However, it’s a lot easier to remove the attributes now than to try and
diagnose miscompilations in future. The performance impact of this is
likely to be unmeasurable. If there are performance problems caused by
this, then they can be profiled and fixed case-by-case in future,
bearing in mind the possibility for miscompilation if G_GNUC_MALLOC is
readded.

Signed-off-by: Philip Withnall <withnall@endlessm.com>

https://gitlab.gnome.org/GNOME/glib/issues/1465
2018-08-22 11:18:02 +01:00

359 lines
13 KiB
C

/* GLIB - Library of useful routines for C programming
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* This library 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 2.1 of the License, or (at your option) any later version.
*
* This library 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 this library; if not, see <http://www.gnu.org/licenses/>.
*/
/*
* Modified by the GLib Team and others 1997-2000. See the AUTHORS
* file for a list of people on the GLib Team. See the ChangeLog
* files for a list of changes. These files are distributed with
* GLib at ftp://ftp.gtk.org/pub/gtk/.
*/
#ifndef __G_STRFUNCS_H__
#define __G_STRFUNCS_H__
#if !defined (__GLIB_H_INSIDE__) && !defined (GLIB_COMPILATION)
#error "Only <glib.h> can be included directly."
#endif
#include <stdarg.h>
#include <glib/gmacros.h>
#include <glib/gtypes.h>
#include <glib/gerror.h>
G_BEGIN_DECLS
/* Functions like the ones in <ctype.h> that are not affected by locale. */
typedef enum {
G_ASCII_ALNUM = 1 << 0,
G_ASCII_ALPHA = 1 << 1,
G_ASCII_CNTRL = 1 << 2,
G_ASCII_DIGIT = 1 << 3,
G_ASCII_GRAPH = 1 << 4,
G_ASCII_LOWER = 1 << 5,
G_ASCII_PRINT = 1 << 6,
G_ASCII_PUNCT = 1 << 7,
G_ASCII_SPACE = 1 << 8,
G_ASCII_UPPER = 1 << 9,
G_ASCII_XDIGIT = 1 << 10
} GAsciiType;
GLIB_VAR const guint16 * const g_ascii_table;
#define g_ascii_isalnum(c) \
((g_ascii_table[(guchar) (c)] & G_ASCII_ALNUM) != 0)
#define g_ascii_isalpha(c) \
((g_ascii_table[(guchar) (c)] & G_ASCII_ALPHA) != 0)
#define g_ascii_iscntrl(c) \
((g_ascii_table[(guchar) (c)] & G_ASCII_CNTRL) != 0)
#define g_ascii_isdigit(c) \
((g_ascii_table[(guchar) (c)] & G_ASCII_DIGIT) != 0)
#define g_ascii_isgraph(c) \
((g_ascii_table[(guchar) (c)] & G_ASCII_GRAPH) != 0)
#define g_ascii_islower(c) \
((g_ascii_table[(guchar) (c)] & G_ASCII_LOWER) != 0)
#define g_ascii_isprint(c) \
((g_ascii_table[(guchar) (c)] & G_ASCII_PRINT) != 0)
#define g_ascii_ispunct(c) \
((g_ascii_table[(guchar) (c)] & G_ASCII_PUNCT) != 0)
#define g_ascii_isspace(c) \
((g_ascii_table[(guchar) (c)] & G_ASCII_SPACE) != 0)
#define g_ascii_isupper(c) \
((g_ascii_table[(guchar) (c)] & G_ASCII_UPPER) != 0)
#define g_ascii_isxdigit(c) \
((g_ascii_table[(guchar) (c)] & G_ASCII_XDIGIT) != 0)
GLIB_AVAILABLE_IN_ALL
gchar g_ascii_tolower (gchar c) G_GNUC_CONST;
GLIB_AVAILABLE_IN_ALL
gchar g_ascii_toupper (gchar c) G_GNUC_CONST;
GLIB_AVAILABLE_IN_ALL
gint g_ascii_digit_value (gchar c) G_GNUC_CONST;
GLIB_AVAILABLE_IN_ALL
gint g_ascii_xdigit_value (gchar c) G_GNUC_CONST;
/* String utility functions that modify a string argument or
* return a constant string that must not be freed.
*/
#define G_STR_DELIMITERS "_-|> <."
GLIB_AVAILABLE_IN_ALL
gchar* g_strdelimit (gchar *string,
const gchar *delimiters,
gchar new_delimiter);
GLIB_AVAILABLE_IN_ALL
gchar* g_strcanon (gchar *string,
const gchar *valid_chars,
gchar substitutor);
GLIB_AVAILABLE_IN_ALL
const gchar * g_strerror (gint errnum) G_GNUC_CONST;
GLIB_AVAILABLE_IN_ALL
const gchar * g_strsignal (gint signum) G_GNUC_CONST;
GLIB_AVAILABLE_IN_ALL
gchar * g_strreverse (gchar *string);
GLIB_AVAILABLE_IN_ALL
gsize g_strlcpy (gchar *dest,
const gchar *src,
gsize dest_size);
GLIB_AVAILABLE_IN_ALL
gsize g_strlcat (gchar *dest,
const gchar *src,
gsize dest_size);
GLIB_AVAILABLE_IN_ALL
gchar * g_strstr_len (const gchar *haystack,
gssize haystack_len,
const gchar *needle);
GLIB_AVAILABLE_IN_ALL
gchar * g_strrstr (const gchar *haystack,
const gchar *needle);
GLIB_AVAILABLE_IN_ALL
gchar * g_strrstr_len (const gchar *haystack,
gssize haystack_len,
const gchar *needle);
GLIB_AVAILABLE_IN_ALL
gboolean g_str_has_suffix (const gchar *str,
const gchar *suffix);
GLIB_AVAILABLE_IN_ALL
gboolean g_str_has_prefix (const gchar *str,
const gchar *prefix);
/* String to/from double conversion functions */
GLIB_AVAILABLE_IN_ALL
gdouble g_strtod (const gchar *nptr,
gchar **endptr);
GLIB_AVAILABLE_IN_ALL
gdouble g_ascii_strtod (const gchar *nptr,
gchar **endptr);
GLIB_AVAILABLE_IN_ALL
guint64 g_ascii_strtoull (const gchar *nptr,
gchar **endptr,
guint base);
GLIB_AVAILABLE_IN_ALL
gint64 g_ascii_strtoll (const gchar *nptr,
gchar **endptr,
guint base);
/* 29 bytes should enough for all possible values that
* g_ascii_dtostr can produce.
* Then add 10 for good measure */
#define G_ASCII_DTOSTR_BUF_SIZE (29 + 10)
GLIB_AVAILABLE_IN_ALL
gchar * g_ascii_dtostr (gchar *buffer,
gint buf_len,
gdouble d);
GLIB_AVAILABLE_IN_ALL
gchar * g_ascii_formatd (gchar *buffer,
gint buf_len,
const gchar *format,
gdouble d);
/* removes leading spaces */
GLIB_AVAILABLE_IN_ALL
gchar* g_strchug (gchar *string);
/* removes trailing spaces */
GLIB_AVAILABLE_IN_ALL
gchar* g_strchomp (gchar *string);
/* removes leading & trailing spaces */
#define g_strstrip( string ) g_strchomp (g_strchug (string))
GLIB_AVAILABLE_IN_ALL
gint g_ascii_strcasecmp (const gchar *s1,
const gchar *s2);
GLIB_AVAILABLE_IN_ALL
gint g_ascii_strncasecmp (const gchar *s1,
const gchar *s2,
gsize n);
GLIB_AVAILABLE_IN_ALL
gchar* g_ascii_strdown (const gchar *str,
gssize len) G_GNUC_MALLOC;
GLIB_AVAILABLE_IN_ALL
gchar* g_ascii_strup (const gchar *str,
gssize len) G_GNUC_MALLOC;
GLIB_AVAILABLE_IN_2_40
gboolean g_str_is_ascii (const gchar *str);
GLIB_DEPRECATED
gint g_strcasecmp (const gchar *s1,
const gchar *s2);
GLIB_DEPRECATED
gint g_strncasecmp (const gchar *s1,
const gchar *s2,
guint n);
GLIB_DEPRECATED
gchar* g_strdown (gchar *string);
GLIB_DEPRECATED
gchar* g_strup (gchar *string);
/* String utility functions that return a newly allocated string which
* ought to be freed with g_free from the caller at some point.
*/
GLIB_AVAILABLE_IN_ALL
gchar* g_strdup (const gchar *str) G_GNUC_MALLOC;
GLIB_AVAILABLE_IN_ALL
gchar* g_strdup_printf (const gchar *format,
...) G_GNUC_PRINTF (1, 2) G_GNUC_MALLOC;
GLIB_AVAILABLE_IN_ALL
gchar* g_strdup_vprintf (const gchar *format,
va_list args) G_GNUC_PRINTF(1, 0) G_GNUC_MALLOC;
GLIB_AVAILABLE_IN_ALL
gchar* g_strndup (const gchar *str,
gsize n) G_GNUC_MALLOC;
GLIB_AVAILABLE_IN_ALL
gchar* g_strnfill (gsize length,
gchar fill_char) G_GNUC_MALLOC;
GLIB_AVAILABLE_IN_ALL
gchar* g_strconcat (const gchar *string1,
...) G_GNUC_MALLOC G_GNUC_NULL_TERMINATED;
GLIB_AVAILABLE_IN_ALL
gchar* g_strjoin (const gchar *separator,
...) G_GNUC_MALLOC G_GNUC_NULL_TERMINATED;
/* Make a copy of a string interpreting C string -style escape
* sequences. Inverse of g_strescape. The recognized sequences are \b
* \f \n \r \t \\ \" and the octal format.
*/
GLIB_AVAILABLE_IN_ALL
gchar* g_strcompress (const gchar *source) G_GNUC_MALLOC;
/* Copy a string escaping nonprintable characters like in C strings.
* Inverse of g_strcompress. The exceptions parameter, if non-NULL, points
* to a string containing characters that are not to be escaped.
*
* Deprecated API: gchar* g_strescape (const gchar *source);
* Luckily this function wasn't used much, using NULL as second parameter
* provides mostly identical semantics.
*/
GLIB_AVAILABLE_IN_ALL
gchar* g_strescape (const gchar *source,
const gchar *exceptions) G_GNUC_MALLOC;
GLIB_AVAILABLE_IN_ALL
gpointer g_memdup (gconstpointer mem,
guint byte_size) G_GNUC_ALLOC_SIZE(2);
/* NULL terminated string arrays.
* g_strsplit(), g_strsplit_set() split up string into max_tokens tokens
* at delim and return a newly allocated string array.
* g_strjoinv() concatenates all of str_array's strings, sliding in an
* optional separator, the returned string is newly allocated.
* g_strfreev() frees the array itself and all of its strings.
* g_strdupv() copies a NULL-terminated array of strings
* g_strv_length() returns the length of a NULL-terminated array of strings
*/
typedef gchar** GStrv;
GLIB_AVAILABLE_IN_ALL
gchar** g_strsplit (const gchar *string,
const gchar *delimiter,
gint max_tokens);
GLIB_AVAILABLE_IN_ALL
gchar ** g_strsplit_set (const gchar *string,
const gchar *delimiters,
gint max_tokens);
GLIB_AVAILABLE_IN_ALL
gchar* g_strjoinv (const gchar *separator,
gchar **str_array) G_GNUC_MALLOC;
GLIB_AVAILABLE_IN_ALL
void g_strfreev (gchar **str_array);
GLIB_AVAILABLE_IN_ALL
gchar** g_strdupv (gchar **str_array);
GLIB_AVAILABLE_IN_ALL
guint g_strv_length (gchar **str_array);
GLIB_AVAILABLE_IN_ALL
gchar* g_stpcpy (gchar *dest,
const char *src);
GLIB_AVAILABLE_IN_2_40
gchar * g_str_to_ascii (const gchar *str,
const gchar *from_locale);
GLIB_AVAILABLE_IN_2_40
gchar ** g_str_tokenize_and_fold (const gchar *string,
const gchar *translit_locale,
gchar ***ascii_alternates);
GLIB_AVAILABLE_IN_2_40
gboolean g_str_match_string (const gchar *search_term,
const gchar *potential_hit,
gboolean accept_alternates);
GLIB_AVAILABLE_IN_2_44
gboolean g_strv_contains (const gchar * const *strv,
const gchar *str);
/* Convenience ASCII string to number API */
/**
* GNumberParserError:
* @G_NUMBER_PARSER_ERROR_INVALID: String was not a valid number.
* @G_NUMBER_PARSER_ERROR_OUT_OF_BOUNDS: String was a number, but out of bounds.
*
* Error codes returned by functions converting a string to a number.
*
* Since: 2.54
*/
typedef enum
{
G_NUMBER_PARSER_ERROR_INVALID,
G_NUMBER_PARSER_ERROR_OUT_OF_BOUNDS,
} GNumberParserError;
/**
* G_NUMBER_PARSER_ERROR:
*
* Domain for errors returned by functions converting a string to a
* number.
*
* Since: 2.54
*/
#define G_NUMBER_PARSER_ERROR (g_number_parser_error_quark ())
GLIB_AVAILABLE_IN_2_54
GQuark g_number_parser_error_quark (void);
GLIB_AVAILABLE_IN_2_54
gboolean g_ascii_string_to_signed (const gchar *str,
guint base,
gint64 min,
gint64 max,
gint64 *out_num,
GError **error);
GLIB_AVAILABLE_IN_2_54
gboolean g_ascii_string_to_unsigned (const gchar *str,
guint base,
guint64 min,
guint64 max,
guint64 *out_num,
GError **error);
G_END_DECLS
#endif /* __G_STRFUNCS_H__ */