Compilare: main.cpp: In function 'void citeste(int&)': main.cpp:13:37: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result [-Wunused-result] fread(buffer,1,10000,in); ^ main.cpp:20:37: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result [-Wunused-result] fread(buffer,1,10000,in); ^ main.cpp: In function 'int main()': main.cpp:28:29: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result [-Wunused-result] fread(buffer,1,10000,in); ^ main.cpp: In function 'void citeste(int&)': main.cpp:24:5: warning: 'semn' may be used uninitialized in this function [-Wmaybe-uninitialized] if(semn=='-') ^~