Fixed findings

List of Findings

Error: CPPCHECK_WARNING (CWE-682): [#def1]
brotli-1.1.0/c/enc/block_splitter_inc.h:232: error[nullPointerArithmetic]: Pointer addition with NULL pointer.
#  230|     size_t i;
#  231|     uint32_t* BROTLI_RESTRICT const sizes = u32 + 0 * HISTOGRAMS_PER_BATCH;
#  232|->   uint32_t* BROTLI_RESTRICT const new_clusters = u32 + 1 * HISTOGRAMS_PER_BATCH;
#  233|     uint32_t* BROTLI_RESTRICT const symbols = u32 + 2 * HISTOGRAMS_PER_BATCH;
#  234|     uint32_t* BROTLI_RESTRICT const remap = u32 + 3 * HISTOGRAMS_PER_BATCH;

Error: CPPCHECK_WARNING (CWE-682): [#def2]
brotli-1.1.0/c/enc/block_splitter_inc.h:233: error[nullPointerArithmetic]: Pointer addition with NULL pointer.
#  231|     uint32_t* BROTLI_RESTRICT const sizes = u32 + 0 * HISTOGRAMS_PER_BATCH;
#  232|     uint32_t* BROTLI_RESTRICT const new_clusters = u32 + 1 * HISTOGRAMS_PER_BATCH;
#  233|->   uint32_t* BROTLI_RESTRICT const symbols = u32 + 2 * HISTOGRAMS_PER_BATCH;
#  234|     uint32_t* BROTLI_RESTRICT const remap = u32 + 3 * HISTOGRAMS_PER_BATCH;
#  235|     uint32_t* BROTLI_RESTRICT const block_lengths =

Error: CPPCHECK_WARNING (CWE-682): [#def3]
brotli-1.1.0/c/enc/block_splitter_inc.h:234: error[nullPointerArithmetic]: Pointer addition with NULL pointer.
#  232|     uint32_t* BROTLI_RESTRICT const new_clusters = u32 + 1 * HISTOGRAMS_PER_BATCH;
#  233|     uint32_t* BROTLI_RESTRICT const symbols = u32 + 2 * HISTOGRAMS_PER_BATCH;
#  234|->   uint32_t* BROTLI_RESTRICT const remap = u32 + 3 * HISTOGRAMS_PER_BATCH;
#  235|     uint32_t* BROTLI_RESTRICT const block_lengths =
#  236|         u32 + 4 * HISTOGRAMS_PER_BATCH;

Error: CPPCHECK_WARNING (CWE-682): [#def4]
brotli-1.1.0/c/enc/block_splitter_inc.h:236: error[nullPointerArithmetic]: Pointer addition with NULL pointer.
#  234|     uint32_t* BROTLI_RESTRICT const remap = u32 + 3 * HISTOGRAMS_PER_BATCH;
#  235|     uint32_t* BROTLI_RESTRICT const block_lengths =
#  236|->       u32 + 4 * HISTOGRAMS_PER_BATCH;
#  237|     /* TODO(eustas): move to arena? */
#  238|     HistogramType* tmp = BROTLI_ALLOC(m, HistogramType, 2);

Error: GCC_ANALYZER_WARNING (CWE-476): [#def5]
brotli-1.1.0/c/enc/block_splitter_inc.h:278:7: warning[-Wanalyzer-null-dereference]: dereference of NULL ‘u32’
brotli-1.1.0/c/enc/block_splitter_inc.h:201:13: enter_function: entry to ‘ClusterBlocksCommand’
brotli-1.1.0/c/enc/block_splitter_inc.h:206:33: branch_true: following ‘true’ branch (when ‘num_blocks != 0’)...
brotli-1.1.0/c/enc/block_splitter_inc.h:206:33: branch_true: ...to here
brotli-1.1.0/c/enc/block_splitter_inc.h:208:7: branch_false: following ‘false’ branch (when ‘num_blocks == 18446744073709551360’)...
brotli-1.1.0/c/enc/block_splitter_inc.h:210:7: branch_false: ...to here
brotli-1.1.0/c/enc/block_splitter_inc.h:214:7: branch_false: following ‘false’ branch (when ‘expected_num_clusters == 0’)...
brotli-1.1.0/c/enc/block_splitter_inc.h:219:31: branch_false: ...to here
brotli-1.1.0/c/enc/block_splitter_inc.h:219:31: branch_true: following ‘true’ branch (when ‘num_blocks != 0’)...
brotli-1.1.0/c/enc/block_splitter_inc.h:219:31: call_function: inlined call to ‘brotli_min_size_t’ from ‘ClusterBlocksCommand’
brotli-1.1.0/c/enc/block_splitter_inc.h:263:15: branch_true: following ‘true’ branch (when ‘i < num_blocks’)...
brotli-1.1.0/c/enc/block_splitter_inc.h:265:9: branch_true: ...to here
brotli-1.1.0/c/enc/block_splitter_inc.h:268:17: branch_true: following ‘true’ branch...
brotli-1.1.0/c/enc/block_splitter_inc.h:270:43: branch_true: ...to here
brotli-1.1.0/c/enc/block_splitter_inc.h:272:19: branch_false: following ‘false’ branch (when ‘k >= block_length’)...
brotli-1.1.0/c/enc/block_splitter_inc.h:275:33: branch_false: ...to here
brotli-1.1.0/c/enc/block_splitter_inc.h:278:7: danger: dereference of NULL ‘u32 + j * 4’
#  276|         new_clusters[j] = (uint32_t)j;
#  277|         symbols[j] = (uint32_t)j;
#  278|->       sizes[j] = 1;
#  279|       }
#  280|       num_new_clusters = FN(BrotliHistogramCombine)(

Error: COMPILER_WARNING (CWE-686): [#def6]
brotli-1.1.0/redhat-linux-build/CMakeFiles/CMakeScratch/TryCompile-konhm0/CheckFunctionExists.c:7:3: warning[-Wbuiltin-declaration-mismatch]: conflicting types for built-in function ‘log2’; expected ‘double(double)’

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