GLib.String.ascii_up

### Method

# GLib Stringascii_up

#### Declaration

    GString*
    g_string_ascii_up (
      GString* string
    )

#### Description

Converts all lowercase ASCII letters to uppercase ASCII letters.

#### Return value

Type: `GString`

Passed-in `string` pointer, with all the lowercase characters converted to uppercase in place, with semantics that exactly match g_ascii_toupper().

The data is owned by the instance.