Compilare: user.c: In function ‘read’: user.c:41:3: warning: implicit declaration of function ‘isdigit’ [-Wimplicit-function-declaration] } while (!isdigit(c)); ^ user.c: In function ‘getChar’: user.c:30:10: warning: ignoring return value of ‘fread’, declared with attribute warn_unused_result [-Wunused-result] fread(buff, 1, Dragoste, f); ^