Byte Order Macros a portable way to convert between different byte orders. These macros provide a portable way to determine the host byte order and to convert values between different byte orders. The byte order is the order in which bytes are stored to create larger data types such as the #gint and #glong values. The host byte order is the byte order used on the current machine. Some processors store the most significant bytes (i.e. the bytes that hold the largest part of the value) first. These are known as big-endian processors. Other processors (notably the x86 family) store the most significant byte last. These are known as little-endian processors. Finally, to complicate matters, some other processors store the bytes in a rather curious order known as PDP-endian. For a 4-byte word, the 3rd most significant byte is stored first, then the 4th, then the 1st and finally the 2nd. Obviously there is a problem when these different processors communicate with each other, for example over networks or by using binary file formats. This is where these macros come in. They are typically used to convert values into a byte order which has been agreed on for use when communicating between different processors. The Internet uses what is known as 'network byte order' as the standard byte order (which is in fact the big-endian byte order). The host byte order. This can be either #G_LITTLE_ENDIAN or #G_BIG_ENDIAN (support for #G_PDP_ENDIAN may be added in future.) Specifies one of the possible types of byte order. See #G_BYTE_ORDER. Specifies one of the possible types of byte order. See #G_BYTE_ORDER. Specifies one of the possible types of byte order (currently unused). See #G_BYTE_ORDER. Converts a 32-bit integer value from host to network byte order. @val: a 32-bit integer value in host byte order. @Returns: @val converted to network byte order. Converts a 16-bit integer value from host to network byte order. @val: a 16-bit integer value in host byte order. @Returns: @val converted to network byte order. Converts a 32-bit integer value from network to host byte order. @val: a 32-bit integer value in network byte order. @Returns: @val converted to host byte order. Converts a 16-bit integer value from network to host byte order. @val: a 16-bit integer value in network byte order. @Returns: @val converted to host byte order. Converts a #gint value from big-endian to host byte order. @val: a #gint value in big-endian byte order. @Returns: @val converted to host byte order. Converts a #gint value from little-endian to host byte order. @val: a #gint value in little-endian byte order. @Returns: @val converted to host byte order. Converts a #gint value from host byte order to big-endian. @val: a #gint value in host byte order. @Returns: @val converted to big-endian byte order. Converts a #gint value from host byte order to little-endian. @val: a #gint value in host byte order. @Returns: @val converted to little-endian byte order. Converts a #guint value from big-endian to host byte order. @val: a #guint value in big-endian byte order. @Returns: @val converted to host byte order. Converts a #guint value from little-endian to host byte order. @val: a #guint value in little-endian byte order. @Returns: @val converted to host byte order. Converts a #guint value from host byte order to big-endian. @val: a #guint value in host byte order. @Returns: @val converted to big-endian byte order. Converts a #guint value from host byte order to little-endian. @val: a #guint value in host byte order. @Returns: @val converted to little-endian byte order. Converts a #glong value from big-endian to the host byte order. @val: a #glong value in big-endian byte order. @Returns: @val converted to host byte order. Converts a #glong value from little-endian to host byte order. @val: a #glong value in little-endian byte order. @Returns: @val converted to host byte order. Converts a #glong value from host byte order to big-endian. @val: a #glong value in host byte order. @Returns: @val converted to big-endian byte order. Converts a #glong value from host byte order to little-endian. @val: a #glong value in host byte order. @Returns: @val converted to little-endian. Converts a #gulong value from big-endian to host byte order. @val: a #gulong value in big-endian byte order. @Returns: @val converted to host byte order. Converts a #gulong value from little-endian to host byte order. @val: a #gulong value in little-endian byte order. @Returns: @val converted to host byte order. Converts a #gulong value from host byte order to big-endian. @val: a #gulong value in host byte order. @Returns: @val converted to big-endian. Converts a #gulong value from host byte order to little-endian. @val: a #gulong value in host byte order. @Returns: @val converted to little-endian. Converts a #gint16 value from big-endian to host byte order. @val: a #gint16 value in big-endian byte order. @Returns: @val converted to host byte order. Converts a #gint16 value from little-endian to host byte order. @val: a #gint16 value in little-endian byte order. @Returns: @val converted to host byte order. Converts a #gint16 value from host byte order to big-endian. @val: a #gint16 value in host byte order. @Returns: @val converted to big-endian. Converts a #gint16 value from host byte order to little-endian. @val: a #gint16 value in host byte order. @Returns: @val converted to little-endian. Converts a #guint16 value from big-endian to host byte order. @val: a #guint16 value in big-endian byte order. @Returns: @val converted to host byte order. Converts a #guint16 value from little-endian to host byte order. @val: a #guint16 value in little-endian byte order. @Returns: @val converted to host byte order. Converts a #guint16 value from host byte order to big-endian. @val: a #guint16 value in host byte order. @Returns: @val converted to big-endian. Converts a #guint16 value from host byte order to little-endian. @val: a #guint16 value in host byte order. @Returns: @val converted to little-endian. Converts a #gint32 value from big-endian to host byte order. @val: a #gint32 value in big-endian byte order. @Returns: @val converted to host byte order. Converts a #gint32 value from little-endian to host byte order. @val: a #gint32 value in little-endian byte order. @Returns: @val converted to host byte order. Converts a #gint32 value from host byte order to big-endian. @val: a #gint32 value in host byte order. @Returns: @val converted to big-endian. Converts a #gint32 value from host byte order to little-endian. @val: a #gint32 value in host byte order. @Returns: @val converted to little-endian. Converts a #guint32 value from big-endian to host byte order. @val: a #guint32 value in big-endian byte order. @Returns: @val converted to host byte order. Converts a #guint32 value from little-endian to host byte order. @val: a #guint32 value in little-endian byte order. @Returns: @val converted to host byte order. Converts a #guint32 value from host byte order to big-endian. @val: a #guint32 value in host byte order. @Returns: @val converted to big-endian. Converts a #guint32 value from host byte order to little-endian. @val: a #guint32 value in host byte order. @Returns: @val converted to little-endian. Converts a #gint64 value from big-endian to host byte order. @val: a #gint64 value in big-endian byte order. @Returns: @val converted to host byte order. Converts a #gint64 value from little-endian to host byte order. @val: a #gint64 value in little-endian byte order. @Returns: @val converted to host byte order. Converts a #gint64 value from host byte order to big-endian. @val: a #gint64 value in host byte order. @Returns: @val converted to big-endian. Converts a #gint64 value from host byte order to little-endian. @val: a #gint64 value in host byte order. @Returns: @val converted to little-endian. Converts a #guint64 value from big-endian to host byte order. @val: a #guint64 value in big-endian byte order. @Returns: @val converted to host byte order. Converts a #guint64 value from little-endian to host byte order. @val: a #guint64 value in little-endian byte order. @Returns: @val converted to host byte order. Converts a #guint64 value from host byte order to big-endian. @val: a #guint64 value in host byte order. @Returns: @val converted to big-endian. Converts a #guint64 value from host byte order to little-endian. @val: a #guint64 value in host byte order. @Returns: @val converted to little-endian. Converts a #guint16 value between big-endian and pdp-endian byte order. The conversion is symmetric so it can be used both ways. @val: a #guint16 value in big-endian or pdp-endian byte order. @Returns: @val converted to the opposite byte order. Converts a #guint16 value between little-endian and big-endian byte order. The conversion is symmetric so it can be used both ways. @val: a #guint16 value in little-endian or big-endian byte order. @Returns: @val converted to the opposite byte order. Converts a #guint16 value between little-endian and pdp-endian byte order. The conversion is symmetric so it can be used both ways. @val: a #guint16 value in little-endian or pdp-endian byte order. @Returns: @val converted to the opposite byte order. Converts a #guint32 value between big-endian and pdp-endian byte order. The conversion is symmetric so it can be used both ways. @val: a #guint32 value in big-endian or pdp-endian byte order. @Returns: @val converted to the opposite byte order. Converts a #guint32 value between little-endian and big-endian byte order. The conversion is symmetric so it can be used both ways. @val: a #guint32 value in little-endian or big-endian byte order. @Returns: @val converted to the opposite byte order. Converts a #guint32 value between little-endian and pdp-endian byte order. The conversion is symmetric so it can be used both ways. @val: a #guint32 value in little-endian or pdp-endian byte order. @Returns: @val converted to the opposite byte order. Converts a #guint64 value between little-endian and big-endian byte order. The conversion is symmetric so it can be used both ways. @val: a #guint64 value in little-endian or big-endian byte order. @Returns: @val converted to the opposite byte order.