39 #define num_zerop(num) ((num.low | num.high) == 0)  argument
458 append_digit (cpp_num num, int digit, int base, size_t precision)  in append_digit()  argument
480   overflow = !!(num.high >> (PART_PRECISION - shift));  in append_digit()
481   result.high = num.high << shift;  in append_digit()
482   result.low = num.low << shift;  in append_digit()
483   result.high |= num.low >> (PART_PRECISION - shift);  in append_digit()
484   result.unsignedp = num.unsignedp;  in append_digit()
488       add_low = num.low << 1;  in append_digit()
489       add_high = (num.high << 1) + (num.low >> (PART_PRECISION - 1));  in append_digit()
509   num.low = result.low;  in append_digit()
510   num.high = result.high;  in append_digit()
512   if (!num_eq (result, num))  in append_digit()
1075 num_trim (cpp_num num, size_t precision)  in num_trim()  argument
1081 	num.high &= ((cpp_num_part) 1 << precision) - 1;  in num_trim()
1086 	num.low &= ((cpp_num_part) 1 << precision) - 1;  in num_trim()
1087       num.high = 0;  in num_trim()
1090   return num;  in num_trim()
1095 num_positive (cpp_num num, size_t precision)  in num_positive()  argument
1100       return (num.high & (cpp_num_part) 1 << (precision - 1)) == 0;  in num_positive()
1103   return (num.low & (cpp_num_part) 1 << (precision - 1)) == 0;  in num_positive()
1109 cpp_num_sign_extend (cpp_num num, size_t precision)  in cpp_num_sign_extend()  argument
1111   if (!num.unsignedp)  in cpp_num_sign_extend()
1117 	      && (num.high & (cpp_num_part) 1 << (precision - 1)))  in cpp_num_sign_extend()
1118 	    num.high |= ~(~(cpp_num_part) 0 >> (PART_PRECISION - precision));  in cpp_num_sign_extend()
1120       else if (num.low & (cpp_num_part) 1 << (precision - 1))  in cpp_num_sign_extend()
1123 	    num.low |= ~(~(cpp_num_part) 0 >> (PART_PRECISION - precision));  in cpp_num_sign_extend()
1124 	  num.high = ~(cpp_num_part) 0;  in cpp_num_sign_extend()
1128   return num;  in cpp_num_sign_extend()
1133 num_negate (cpp_num num, size_t precision)  in num_negate()  argument
1137   copy = num;  in num_negate()
1138   num.high = ~num.high;  in num_negate()
1139   num.low = ~num.low;  in num_negate()
1140   if (++num.low == 0)  in num_negate()
1141     num.high++;  in num_negate()
1142   num = num_trim (num, precision);  in num_negate()
1143   num.overflow = (!num.unsignedp && num_eq (num, copy) && !num_zerop (num));  in num_negate()
1145   return num;  in num_negate()
1240 num_rshift (cpp_num num, size_t precision, size_t n)  in num_rshift()  argument
1243   bool x = num_positive (num, precision);  in num_rshift()
1245   if (num.unsignedp || x)  in num_rshift()
1251     num.high = num.low = sign_mask;  in num_rshift()
1256 	num.high = sign_mask, num.low |= sign_mask << precision;  in num_rshift()
1258 	num.high |= sign_mask << (precision - PART_PRECISION);  in num_rshift()
1263 	  num.low = num.high;  in num_rshift()
1264 	  num.high = sign_mask;  in num_rshift()
1269 	  num.low = (num.low >> n) | (num.high << (PART_PRECISION - n));  in num_rshift()
1270 	  num.high = (num.high >> n) | (sign_mask << (PART_PRECISION - n));  in num_rshift()
1274   num = num_trim (num, precision);  in num_rshift()
1275   num.overflow = false;  in num_rshift()
1276   return num;  in num_rshift()
1281 num_lshift (cpp_num num, size_t precision, size_t n)  in num_lshift()  argument
1285       num.overflow = !num.unsignedp && !num_zerop (num);  in num_lshift()
1286       num.high = num.low = 0;  in num_lshift()
1293       orig = num;  in num_lshift()
1297 	  num.high = num.low;  in num_lshift()
1298 	  num.low = 0;  in num_lshift()
1302 	  num.high = (num.high << m) | (num.low >> (PART_PRECISION - m));  in num_lshift()
1303 	  num.low <<= m;  in num_lshift()
1305       num = num_trim (num, precision);  in num_lshift()
1307       if (num.unsignedp)  in num_lshift()
1308 	num.overflow = false;  in num_lshift()
1311 	  maybe_orig = num_rshift (num, precision, n);  in num_lshift()
1312 	  num.overflow = !num_eq (orig, maybe_orig);  in num_lshift()
1316   return num;  in num_lshift()
1321 num_unary_op (cpp_reader *pfile, cpp_num num, enum cpp_ttype op)  in num_unary_op()  argument
1329       num.overflow = false;  in num_unary_op()
1333       num = num_negate (num, CPP_OPTION (pfile, precision));  in num_unary_op()
1337       num.high = ~num.high;  in num_unary_op()
1338       num.low = ~num.low;  in num_unary_op()
1339       num = num_trim (num, CPP_OPTION (pfile, precision));  in num_unary_op()
1340       num.overflow = false;  in num_unary_op()
1344       num.low = num_zerop (num);  in num_unary_op()
1345       num.high = 0;  in num_unary_op()
1346       num.overflow = false;  in num_unary_op()
1347       num.unsignedp = false;  in num_unary_op()
1351   return num;  in num_unary_op()