/in/database.c: In function 'main':
/in/database.c:477:5: warning: implicit declaration of function 'gets'; did you mean 'fgets'? [-Wimplicit-function-declaration]
     gets(command);
     ^~~~
     fgets
/in/database.c: In function 'update':
/in/database.c:142:73: warning: 'value' may be used uninitialized in this function [-Wmaybe-uninitialized]
                                     db.tables[i].assignments[o].deadline=value;
                                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~
/tmp/ccMxzdqu.o: In function `main':
database.c:(.text.startup+0x37): warning: the `gets' function is dangerous and should not be used.