GLib.ascii_string_to_signed
Description: Reference for GLib.ascii_string_to_signed

### Function

# GLibascii_string_to_signed

since: 2.54

#### Declaration [src]

    gboolean
    g_ascii_string_to_signed (
      const gchar* str,
      guint base,
      gint64 min,
      gint64 max,
      gint64* out_num,
      GError** error
    )

#### Description [src]

A convenience function for converting a string to a signed number.

This function assumes that `str` contains only a number of the given `base` that is within inclusive bounds limited by `min` and `max`. If this is true, then the converted number is stored in `out_num`. An empty string is not a valid input. A string with leading or trailing whitespace is also an invalid input.

`base` can be between 2 and 36 inclusive. Hexadecimal numbers must not be prefixed with “0x” or “0X”. Such a problem does not exist for octal numbers, since they were usually prefixed with a zero which does not change the value of the parsed number.

Parsing failures result in an error with the `G_NUMBER_PARSER_ERROR` domain. If the input is invalid, the error code will be `G_NUMBER_PARSER_ERROR_INVALID`. If the parsed number is out of bounds - `G_NUMBER_PARSER_ERROR_OUT_OF_BOUNDS`.

See `g_ascii_strtoll()` if you have more complex needs such as parsing a string which starts with a number, but then has other characters.

Available since: 2.54

#### Parameters

`str`

  Type: `const gchar*`

  A string to convert.

  The data is owned by the caller of the function.
  The value is a NUL terminated UTF-8 string.

`base`

  Type: `guint`

  Base of a parsed number.

`min`

  Type: `gint64`

  A lower bound (inclusive).

`max`

  Type: `gint64`

  An upper bound (inclusive).

`out_num`

  Type: `gint64*`

  A return location for a number.

  The argument will be set by the function.
  The argument can be `NULL`.

`error`

  Type: `GError **`

  The return location for a recoverable error.

  The argument can be `NULL`.
  If the return location is not `NULL`, then you must initialize it to a `NULL` `GError*`.
  The argument will be left initialized to `NULL` by the function if there are no errors.
  In case of error, the argument will be set to a newly allocated `GError`; the caller will take ownership of the data, and be responsible for freeing it.

#### Return value

Type: `gboolean`

True if `str` was a number, false otherwise.