ddidderr/zstd-rs
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fix one UB pointer arithmetic in encoder

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Instead of calculating distance between 2 memory objects, which is UB,
we extract the offset from object 1, and transfer it into object 2.
This commit is contained in:
Yann Collet
2017-11-17 13:24:51 -08:00
parent cdade555ee
commit 23767e950a
3 changed files with 16 additions and 18 deletions
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tests/Makefile
+4 -7
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@@ -131,14 +131,11 @@ zbufftest-dll : $(ZSTDDIR)/common/xxhash.c $(PRGDIR)/datagen.c zbufftest.c
$(CC) $(CPPFLAGS) $(CFLAGS) $^ $(LDFLAGS) -o $@$(EXT)
ZSTREAMFILES := $(ZSTD_FILES) $(ZDICT_FILES) $(PRGDIR)/datagen.c seqgen.c zstreamtest.c
zstreamtest : CPPFLAGS += $(MULTITHREAD_CPP)
zstreamtest : LDFLAGS += $(MULTITHREAD_LD)
zstreamtest : $(ZSTREAMFILES)
$(CC) $(FLAGS) $^ -o $@$(EXT)
zstreamtest32 : CFLAGS += -m32
zstreamtest32 : $(ZSTREAMFILES)
$(CC) $(FLAGS) $(MULTITHREAD) $^ -o $@$(EXT)
zstreamtest zstreamtest32 : CPPFLAGS += $(MULTITHREAD_CPP)
zstreamtest zstreamtest32 : LDFLAGS += $(MULTITHREAD_LD)
zstreamtest zstreamtest32 : $(ZSTREAMFILES)
$(CC) $(FLAGS) $^ -o $@$(EXT)
zstreamtest_asan : CFLAGS += -fsanitize=address
zstreamtest_asan : $(ZSTREAMFILES)