Several warnings while compiling with MingW in Windows.

[hero2017]

I've been seeing these regularly with all the cFish updates I've tried so far, even before Numa. It compiles without error and doesn't seem to affect the engine's performance but perhaps it can lead to other problems? Tried several different versions of gcc. Compiling with MingW, and currently using gcc 6.2.0 on Win'2008 R2 Ent. and 2x E5-2696v3 . And as I mentioned before, LP doesn't work as well. I hope this helps.

..... gcc -Wall -std=c11 -fprofile-generate -Wextra -Wshadow -DNDEBUG -O3 -DIS_64BIT - msse -msse3 -mpopcnt -DUSE_POPCNT -DUSE_PEXT -mbmi2 -DNUMA -c -o position.o po sition.c position.c: In function 'print_pos': position.c:127:31: warning: unknown conversion type character 'l' in format [-Wf ormat=] printf("\nFen: %s\nKey: %16llX\nCheckers: ", ^ position.c:127:10: warning: too many arguments for format [-Wformat-extra-args] printf("\nFen: %s\nKey: %16llX\nCheckers: ", ^~~~~~~~ position.c:127:31: warning: unknown conversion type character 'l' in format [-Wf ormat=] printf("\nFen: %s\nKey: %16llX\nCheckers: ", ^ position.c:127:10: warning: too many arguments for format [-Wformat-extra-args] printf("\nFen: %s\nKey: %16llX\nCheckers: ", ^~~~~~~~ gcc -Wall -std=c11 -fprofile-generate -Wextra -Wshadow -DNDEBUG -O3 -DIS_64BIT - msse -msse3 -mpopcnt -DUSE_POPCNT -DUSE_PEXT -mbmi2 -DNUMA -c -o psqt.o psqt.c

gcc -Wall -std=c11 -fprofile-generate -Wextra -Wshadow -DNDEBUG -O3 -DIS_64BIT - msse -msse3 -mpopcnt -DUSE_POPCNT -DUSE_PEXT -mbmi2 -DNUMA -c -o search.o sear ch.c search.c: In function 'search_clear': search.c:219:22: warning: format '%ld' expects argument of type 'long int', but argument 2 has type 'long long unsigned int' [-Wformat=] printf("sizeof = %ld\n", sizeof(*cmh_tables[0])); ^ search.c:219:22: warning: format '%ld' expects argument of type 'long int', but argument 2 has type 'long long unsigned int' [-Wformat=] gcc -Wall -std=c11 -fprofile-generate -Wextra -Wshadow -DNDEBUG -O3 -DIS_64BIT - msse -msse3 -mpopcnt -DUSE_POPCNT -DUSE_PEXT -mbmi2 -DNUMA -c -o tbprobe.o tbp robe.c tbprobe.c: In function 'probe_wdl_table': tbprobe.c:160:10: warning: array subscript is above array bounds [-Warray-bounds ] p[i++] = pop_lsb(&bb) ^ mirror; ~^~~~~ tbprobe.c: In function 'TB_probe_dtz': tbprobe.c:270:10: warning: array subscript is above array bounds [-Warray-bounds ] p[i++] = pop_lsb(&bb) ^ mirror; .....

In all fairness I also see some warnings when running a Stockfish Run test where it downloads and compiles a test run:

Running lmrk3b vs master: ..... g++ -Wall -Wcast-qual -fno-exceptions -fno-rtti -std=c++11 -fprofile-generate -W extra -Wshadow -DNDEBUG -O3 -DIS_64BIT -msse -msse3 -mpopcnt -DUSE_POPCNT -c - o syzygy/tbprobe.o syzygy/tbprobe.cpp syzygy/tbprobe.cpp: In function 'int probeab(Position&, int, int, int)': syzygy/tbprobe.cpp:205:14: warning: array subscript is above array bounds [-Warr ay-bounds] p[i++] = pop_lsb(&bb) ^ mirror;

syzygy/tbprobe.cpp: In function 'int Tablebases::probe_dtz(Position&, int_)':
syzygy/tbprobe.cpp:315:14: warning: array subscript is above array bounds [-Warr
ay-bounds]
         p[i++] = pop_lsb(&bb) ^ mirror;
         ~~~~~^
g++ -o stockfish benchmark.o bitbase.o bitboard.o endgame.o evaluate.o main.o ma
terial.o misc.o movegen.o movepick.o pawns.o position.o psqt.o search.o thread.o
 timeman.o tt.o uci.o ucioption.o syzygy/tbprobe.o -lgcov -static

.....

[syzygy1]

LP does not work yet "by design". I will fix this soon. The warnings are harmless but a bit annoying. Some of them seem to be incorrectly reported by MingW. Maybe I'll just disable the -Wformat warnings in the Makefile. The array subscript warnings are incorrectly generated by gcc since gcc-4.8.

[hero2017]

Thank you for the response. I'll wait and look forward to the fixes and let you know of any other problems if that's ok. Good job on Numa. Love it!

[MichaelB7]

You can use "-Wno-array-bounds" for the gcc-4.8 array subscript warning.