devkit compile error

[essamgoda]

I tried to compile devkit

g++ -O3 -DNDEBUG -o evaluate_odometry evaluate_odometry.cpp matrix.cpp

it returns these errors

evaluate_odometry.cpp: In function ‘void plotPathPlot(std::string, std::vector&, int32_t)’: evaluate_odometry.cpp:237:16: warning: unknown escape sequence: '\040' 237 | fprintf(fp,"\ '' using 2:3:1 with labels offset -2,0,"); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ evaluate_odometry.cpp:245:11: warning: ignoring return value of ‘int system(const char*)’, declared with attribute warn_unused_result [-Wunused-result] 245 | system(command); | ~~~~~~^~~~~~~~~ evaluate_odometry.cpp:250:9: warning: ignoring return value of ‘int system(const char*)’, declared with attribute warn_unused_result [-Wunused-result] 250 | system(command); | ~~~~~~^~~~~~~~~ evaluate_odometry.cpp:252:9: warning: ignoring return value of ‘int system(const char*)’, declared with attribute warn_unused_result [-Wunused-result] 252 | system(command); | ~~~~~~^~~~~~~~~ evaluate_odometry.cpp:254:9: warning: ignoring return value of ‘int system(const char*)’, declared with attribute warn_unused_result [-Wunused-result] 254 | system(command); | ~~~~~~^~~~~~~~~ evaluate_odometry.cpp: In function ‘void plotErrorPlots(std::string, char*)’: evaluate_odometry.cpp:387:13: warning: ignoring return value of ‘int system(const char*)’, declared with attribute warn_unused_result [-Wunused-result] 387 | system(command); | ~~~~~~^~~~~~~~~ evaluate_odometry.cpp:392:11: warning: ignoring return value of ‘int system(const char*)’, declared with attribute warn_unused_result [-Wunused-result] 392 | system(command); | ~~~~~~^~~~~~~~~ evaluate_odometry.cpp:394:11: warning: ignoring return value of ‘int system(const char*)’, declared with attribute warn_unused_result [-Wunused-result] 394 | system(command); | ~~~~~~^~~~~~~~~ evaluate_odometry.cpp:396:11: warning: ignoring return value of ‘int system(const char*)’, declared with attribute warn_unused_result [-Wunused-result] 396 | system(command); | ~~~~~~^~~~~~~~~ evaluate_odometry.cpp: In function ‘bool eval(std::string, std::string, Mail*)’: evaluate_odometry.cpp:436:9: warning: ignoring return value of ‘int system(const char*)’, declared with attribute warn_unused_result [-Wunused-result] 436 | system(("mkdir " + error_dir).c_str()); | ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ evaluate_odometry.cpp:437:9: warning: ignoring return value of ‘int system(const char*)’, declared with attribute warn_unused_result [-Wunused-result] 437 | system(("mkdir " + plot_path_dir).c_str()); | ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ evaluate_odometry.cpp:438:9: warning: ignoring return value of ‘int system(const char*)’, declared with attribute warn_unused_result [-Wunused-result] 438 | system(("mkdir " + plot_error_dir).c_str()); | ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ evaluate_odometry.cpp: In function ‘void plotErrorPlots(std::string, char*)’: evaluate_odometry.cpp:343:29: warning: ‘__builtin___sprintf_chk’ may write a terminating nul past the end of the destination [-Wformat-overflow=] 343 | sprintf(full_name,"%s/%s",dir.c_str(),file_name); | ^ In file included from /usr/include/stdio.h:867, from /usr/include/c++/9/cstdio:42, from /usr/include/c++/9/ext/string_conversions.h:43, from /usr/include/c++/9/bits/basic_string.h:6493, from /usr/include/c++/9/string:55, from /usr/include/c++/9/bits/locale_classes.h:40, from /usr/include/c++/9/bits/ios_base.h:41, from /usr/include/c++/9/ios:42, from /usr/include/c++/9/ostream:38, from /usr/include/c++/9/iostream:39, from evaluate_odometry.cpp:1: /usr/include/x86_64-linux-gnu/bits/stdio2.h:36:34: note: ‘__builtin___sprintf_chk’ output 2 or more bytes (assuming 1025) into a destination of size 1024 36 | return __builtin___sprintf_chk (__s, __USE_FORTIFY_LEVEL - 1, | ~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 37 | __bos (__s), __fmt, __va_arg_pack ()); | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ evaluate_odometry.cpp:386:39: warning: ‘%s’ directive writing up to 1023 bytes into a region of size 1011 [-Wformat-overflow=] 386 | sprintf(command,"cd %s; gnuplot %s",dir.c_str(),file_name); | ^~ ~~~~~~~~~ In file included from /usr/include/stdio.h:867, from /usr/include/c++/9/cstdio:42, from /usr/include/c++/9/ext/string_conversions.h:43, from /usr/include/c++/9/bits/basic_string.h:6493, from /usr/include/c++/9/string:55, from /usr/include/c++/9/bits/locale_classes.h:40, from /usr/include/c++/9/bits/ios_base.h:41, from /usr/include/c++/9/ios:42, from /usr/include/c++/9/ostream:38, from /usr/include/c++/9/iostream:39, from evaluate_odometry.cpp:1: /usr/include/x86_64-linux-gnu/bits/stdio2.h:36:34: note: ‘__builtin___sprintf_chk’ output 14 or more bytes (assuming 1037) into a destination of size 1024 36 | return __builtin___sprintf_chk (__s, __USE_FORTIFY_LEVEL - 1, | ~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 37 | __bos (__s), __fmt, __va_arg_pack ()); | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ matrix.cpp: In member function ‘FLOAT Matrix::det()’: matrix.cpp:404:17: warning: control reaches end of non-void function [-Wreturn-type] 404 | Matrix A(*this); | ^

error.txt