cursor

A simple iterator for packing/unpacking primitive c types to/from a provided buffer.

Example

/* A buffer to store packed data */uint8_tbuf[6];
/* Construct a new writer cursor with the buffer we just defined */structcursor_wtrwtr=cursor_wtr_new(buf, sizeof(buf));
uint16_twritten_u16=0x0123;
uint32_twritten_u32=0x456789AB;
/* Write written_u16 to buf little-endian */cursor_pack_le_u16(&wtr, written_u16);
/* Write written_u32 to buf big-endian */cursor_pack_be_u32(&wtr, written_u32);
/* Construct a reader cursor */structcursor_rdrrdr=cursor_rdr_new(buf, sizeof(buf));
uint16_tread_u16=0;
uint32_tread_u32=0;
/* Read a packed little-endian uint16_t out of buf */cursor_unpack_le_u16(&rdr, &read_u16);
/* Read a packed big-endian uint32_t out of buf */cursor_unpack_be_u32(&rdr, &read_u32);
assert(read_u16==written_u16);
assert(read_u32==written_u32);

See the full example.