Compilare: user.cpp: In function ‘void cit(double&)’: user.cpp:17:34: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] for ( x = 0 ; ch[poz] >= '0' && ch[poz] <= '9' || ch[poz] == '-' || ch[poz] == '.'; verf ) { ^ user.cpp: In function ‘int main()’: user.cpp:70:45: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("infasuratoare.in", "r", stdin); ^ user.cpp:73:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ("%d\n", &N); ^ user.cpp: In function ‘void cit(double&)’: user.cpp:15:56: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] if ( ch[0] == '\0' ) fread ( ch, 1, 1<<17, stdin ) ; ^ user.cpp:16:10: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] else for ( ; (ch[poz] < '0' || ch[poz] > '9') && ch[poz] != '-' && ch[poz] != '.'; verf ) ; ^ user.cpp:17:5: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] for ( x = 0 ; ch[poz] >= '0' && ch[poz] <= '9' || ch[poz] == '-' || ch[poz] == '.'; verf ) { ^