Compilare: user.c: In function ‘skip_to_char’: user.c:27:9: warning: ignoring return value of ‘fgets’, declared with attribute warn_unused_result [-Wunused-result] fgets(*str, BLOCK_SIZE, fp); ^ user.c: In function ‘main’: user.c:49:7: warning: ignoring return value of ‘fgets’, declared with attribute warn_unused_result [-Wunused-result] fgets(temp_string, BLOCK_SIZE, in); ^ user.c:61:10: warning: ignoring return value of ‘fgets’, declared with attribute warn_unused_result [-Wunused-result] fgets(temp_string, BLOCK_SIZE, in); ^ user.c:76:7: warning: ignoring return value of ‘fgets’, declared with attribute warn_unused_result [-Wunused-result] fgets(temp_string, BLOCK_SIZE, in); ^ user.c:87:9: warning: ignoring return value of ‘fgets’, declared with attribute warn_unused_result [-Wunused-result] fgets(temp_string, BLOCK_SIZE, in); ^ user.c:95:10: warning: ignoring return value of ‘fgets’, declared with attribute warn_unused_result [-Wunused-result] fgets(temp_string, BLOCK_SIZE, in); ^ user.c:106:11: warning: ignoring return value of ‘fgets’, declared with attribute warn_unused_result [-Wunused-result] fgets(temp_string, BLOCK_SIZE, in); ^ user.c:114:11: warning: ignoring return value of ‘fgets’, declared with attribute warn_unused_result [-Wunused-result] fgets(temp_string, BLOCK_SIZE, in); ^ user.c:123:11: warning: ignoring return value of ‘fgets’, declared with attribute warn_unused_result [-Wunused-result] fgets(temp_string, BLOCK_SIZE, in); ^