Function
GLibstrncasecmp
deprecated: 2.2
Declaration [src]
gint
g_strncasecmp (
const gchar* s1,
const gchar* s2,
guint n
)
Description [src]
A case-insensitive string comparison, corresponding to the standard
strncasecmp() function on platforms which support it. It is similar
to g_strcasecmp() except it only compares the first n characters of
the strings.
Deprecated since: 2.2
The problem with g_strncasecmp() is that it does
the comparison by calling toupper()/tolower(). These functions
are locale-specific and operate on single bytes. However, it is
impossible to handle things correctly from an internationalization
standpoint by operating on bytes, since characters may be multibyte.
Thus g_strncasecmp() is broken if your string is guaranteed to be
ASCII, since it is locale-sensitive, and it’s broken if your string
is localized, since it doesn’t work on many encodings at all,
including UTF-8, EUC-JP, etc.
There are therefore two replacement techniques: g_ascii_strncasecmp(),
which only works on ASCII and is not locale-sensitive, and
g_utf8_casefold() followed by strcmp() on the resulting strings,
which is good for case-insensitive sorting of UTF-8.
Parameters
s1-
Type:
const gchar*String to compare with
s2.The data is owned by the caller of the function. The value is a NUL terminated UTF-8 string. s2-
Type:
const gchar*String to compare with
s1.The data is owned by the caller of the function. The value is a NUL terminated UTF-8 string. n-
Type:
guintThe maximum number of characters to compare.