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  • Std/io

Read-bytes$-n

Flexible macro for reading whole lists of n 1-, 2-, 4-, or 8-byte values from an open :byte input stream.

General form:

(read-bytes$-n n channel
               [:bytes bytes]     ;; default: 1
               [:signed signed]   ;; default: nil
               [:end end]         ;; default: :big
               )

The bytes, signed, and end arguments are as in read-bytes$.

The number n says how many values to read. The actual number of bytes that will be read is therefore n * bytes. E.g., reading three 8-byte values will consume a total of 24 bytes from the input stream.

If EOF is reached before n * bytes bytes are read from the stream, then we return fail. Otherwise, we return an n-element list, where every member is an appropriate integer for this combination of signedness and size.

Subtopics

Read-64ule-n
(read-64ule-n n channel state) reads n 64-bit, unsigned, little-endian values from the input channel and returns them as a list.
Read-64ube-n
(read-64ube-n n channel state) reads n 64-bit, unsigned, big-endian values from the input channel and returns them as a list.
Read-64sle-n
(read-64sle-n n channel state) reads n 64-bit, signed, little-endian values from the input channel and returns them as a list.
Read-64sbe-n
(read-64sbe-n n channel state) reads n 64-bit, signed, big-endian values from the input channel and returns them as a list.
Read-32ule-n
(read-32ule-n n channel state) reads n 32-bit, unsigned, little-endian values from the input channel and returns them as a list.
Read-32ube-n
(read-32ube-n n channel state) reads n 32-bit, unsigned, big-endian values from the input channel and returns them as a list.
Read-32sle-n
(read-32sle-n n channel state) reads n 32-bit, signed, little-endian values from the input channel and returns them as a list.
Read-32sbe-n
(read-32sbe-n n channel state) reads n 32-bit, signed, big-endian values from the input channel and returns them as a list.
Read-16ule-n
(read-16ule-n n channel state) reads n 16-bit, unsigned, little-endian values from the input channel and returns them as a list.
Read-16ube-n
(read-16ube-n n channel state) reads n 16-bit, unsigned, big-endian values from the input channel and returns them as a list.
Read-16sle-n
(read-16sle-n n channel state) reads n 16-bit, signed, little-endian values from the input channel and returns them as a list.
Read-16sbe-n
(read-16sbe-n n channel state) reads n 16-bit, signed, big-endian values from the input channel and returns them as a list.
Read-byte$-n
(read-byte$-n n channel state) reads n unsigned bytes from the input channel and returns them as a list.
Read-8s-n
(read-8s-n n channel state) reads n signed bytes from the input channel and returns them as a list.