diff options
Diffstat (limited to 'glib/gstrfuncs.c')
| -rw-r--r-- | glib/gstrfuncs.c | 148 |
1 files changed, 0 insertions, 148 deletions
diff --git a/glib/gstrfuncs.c b/glib/gstrfuncs.c index fae0c939e..9d6cbd928 100644 --- a/glib/gstrfuncs.c +++ b/glib/gstrfuncs.c @@ -580,154 +580,6 @@ g_ascii_formatd (gchar *buffer, return buffer; } -/** - * g_ascii_strtoull: - * @nptr: the string to convert to a numeric value. - * @endptr: if non-%NULL, it returns the character after - * the last character used in the conversion. - * @base: to be used for the conversion, 2..36 or 0 - * - * Converts a string to a #guint64 value. - * This function behaves like the standard strtull() function - * does in the C locale. It does this without actually - * changing the current locale, since that would not be - * thread-safe. - * - * This function is typically used when reading configuration - * files or other non-user input that should be locale independent. - * To handle input from the user you should normally use the - * locale-sensitive system strtoull() function. - * - * If the correct value would cause overflow, %G_MAXUINT64 - * is returned, and %ERANGE is stored in %errno. - * - * Return value: the #guint64 value. - **/ -guint64 -g_ascii_strtoull (const gchar *nptr, - gchar **endptr, - guint base) -{ - /* this code is based on on the strtol(3) code from GLibC released under - * the GNU Lesser General Public License. - */ -#define ISSPACE(c) ((c) == ' ' || (c) == '\f' || (c) == '\n' || \ - (c) == '\r' || (c) == '\t' || (c) == '\v') -#define ISUPPER(c) ((c) >= 'A' && (c) <= 'Z') -#define ISLOWER(c) ((c) >= 'a' && (c) <= 'z') -#define ISALPHA(c) (ISUPPER (c) || ISLOWER (c)) -#define TOUPPER(c) (ISLOWER (c) ? (c) - 'a' + 'A' : (c)) -#define TOLOWER(c) (ISUPPER (c) ? (c) - 'A' + 'a' : (c)) - gboolean negative, overflow; - guint64 cutoff; - guint64 cutlim; - guint64 ui64; - const gchar *s, *save; - guchar c; - - g_return_val_if_fail (nptr != NULL, 0); - - if (base == 1 || base > 36) - { - errno = EINVAL; - return 0; - } - - save = s = nptr; - - /* Skip white space. */ - while (ISSPACE (*s)) - ++s; - if (!*s) - goto noconv; - - /* Check for a sign. */ - negative = FALSE; - if (*s == '-') - { - negative = TRUE; - ++s; - } - else if (*s == '+') - ++s; - - /* Recognize number prefix and if BASE is zero, figure it out ourselves. */ - if (*s == '0') - { - if ((base == 0 || base == 16) && TOUPPER (s[1]) == 'X') - { - s += 2; - base = 16; - } - else if (base == 0) - base = 8; - } - else if (base == 0) - base = 10; - - /* Save the pointer so we can check later if anything happened. */ - save = s; - cutoff = G_MAXUINT64 / base; - cutlim = G_MAXUINT64 % base; - - overflow = FALSE; - ui64 = 0; - c = *s; - for (; c; c = *++s) - { - if (c >= '0' && c <= '9') - c -= '0'; - else if (ISALPHA (c)) - c = TOUPPER (c) - 'A' + 10; - else - break; - if (c >= base) - break; - /* Check for overflow. */ - if (ui64 > cutoff || (ui64 == cutoff && c > cutlim)) - overflow = TRUE; - else - { - ui64 *= base; - ui64 += c; - } - } - - /* Check if anything actually happened. */ - if (s == save) - goto noconv; - - /* Store in ENDPTR the address of one character - past the last character we converted. */ - if (endptr) - *endptr = (gchar*) s; - - if (overflow) - { - errno = ERANGE; - return G_MAXUINT64; - } - - /* Return the result of the appropriate sign. */ - return negative ? -ui64 : ui64; - - noconv: - /* We must handle a special case here: the base is 0 or 16 and the - first two characters are '0' and 'x', but the rest are no - hexadecimal digits. This is no error case. We return 0 and - ENDPTR points to the `x`. */ - if (endptr) - { - if (save - nptr >= 2 && TOUPPER (save[-1]) == 'X' - && save[-2] == '0') - *endptr = (gchar*) &save[-1]; - else - /* There was no number to convert. */ - *endptr = (gchar*) nptr; - } - return 0; -} - G_CONST_RETURN gchar* g_strerror (gint errnum) |