Support compiling on x86 platforms without working function multiversioning.

[plocate] / turbopfor-encode.h

diff --git a/turbopfor-encode.h b/turbopfor-encode.h
index 532aa19d07b01faf6643f54153ac019387907d38..9341efc0b7f4c23552f29dbd115bac508eb6cc1d 100644 (file)
--- a/turbopfor-encode.h
+++ b/turbopfor-encode.h
@@ -13,9 +13,11 @@
 
 #include "turbopfor-common.h"
 
+#include <algorithm>
 #include <assert.h>
 #include <limits.h>
 #include <stdint.h>
+#include <string.h>
 
 template<class Docid>
 void write_le(Docid val, void *out)
@@ -27,7 +29,7 @@ void write_le(Docid val, void *out)
        } else if constexpr (sizeof(Docid) == 2) {
                val = htole16(val);
        } else if constexpr (sizeof(Docid) == 1) {
-               val = val;
+               // No change.
        } else {
                assert(false);
        }
@@ -50,6 +52,12 @@ unsigned char *write_baseval(Docid in, unsigned char *out)
                out[1] = in & 0xff;
                out[2] = (in >> 8) & 0xff;
                return out + 3;
+       } else if (in < 0x10000000) {
+               out[0] = (in >> 24) | 0xe0;
+               out[1] = (in >> 16) & 0xff;
+               out[2] = (in >> 8) & 0xff;
+               out[3] = in & 0xff;
+               return out + 4;
        } else {
                assert(false);  // Not implemented.
        }