remove useless cast

Makefile

@@ -9,7 +9,7 @@ SRC_CXX = $(wildcard src/*.cpp)
 
 INCLUDE=include
 
-COMMON_FLAGS= -W -Wall -pedantic -fno-strict-aliasing $(addprefix -I,$(INCLUDE))
+COMMON_FLAGS= -W -Wall -Wstrict-aliasing -Wextra -pedantic -fno-strict-aliasing $(addprefix -I,$(INCLUDE))
 
 MARCH?= -march=native
 OPT_FLAGS?= $(MARCH) -fgraphite -fopenmp -floop-parallelize-all -ftree-parallelize-loops=4 \

src/bits.c

@@ -30,7 +30,7 @@ static int fwrite_all(const void* _buf, size_t sz, size_t num, FILE* out)
 
 static void pbits(char out[restrict 8], unsigned char byte, const char bit[static 2])
 {
-	for(register int i=8; i --> 0; byte >>= 1) *out++=((int)bit[byte & 1]);
+	for(register int i=8; i --> 0; byte >>= 1) *out++=bit[byte & 1];
 	//TODO: In explicitly threaded version, we can use an atomic (atomic.h) 64-bit integer `store()` to output those 8 bytes in `out`, which will be re-cast as `uint64_t out[restrict 1]`
 }