Compilare: user.cpp: In function ‘void parseaza(int)’: user.cpp:117:21: warning: converting to non-pointer type ‘char’ from NULL [-Wconversion-null] sir[0] = sir[1] = NULL; int nr = 0; ^ user.cpp:126:35: warning: converting to non-pointer type ‘char’ from NULL [-Wconversion-null] r[0] = x % 10 + '0'; r[1] = NULL; ^ user.cpp: In function ‘int main()’: user.cpp:45:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("ismquery.in","r",stdin); ^ user.cpp:46:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("ismquery.out","w",stdout); ^ user.cpp:48:38: 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 , Bsize , stdin); pos = 0; ^ user.cpp: In function ‘int getNumber()’: user.cpp:96:46: 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 , Bsize , stdin); ^ user.cpp:106:46: 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 , Bsize , stdin); ^