| 55 | } |
| 56 | |
| 57 | std::string FormatDoubleConstant(double value) { |
| 58 | if (std::isfinite(value)) { |
| 59 | if (std::floor(value) != value) { |
| 60 | // The double is not representable as a whole number, so use |
| 61 | // absl::StrCat which will add decimal places. |
| 62 | return absl::StrCat(value); |
| 63 | } |
| 64 | // absl::StrCat historically would represent 0.0 as 0, and we want the |
| 65 | // decimal places so ZetaSQL correctly assumes the type as double |
| 66 | // instead of int64. |
| 67 | std::string stringified = absl::StrCat(value); |
| 68 | if (!absl::StrContains(stringified, '.')) { |
| 69 | absl::StrAppend(&stringified, ".0"); |
| 70 | } |
| 71 | return stringified; |
| 72 | } |
| 73 | if (std::isnan(value)) { |
| 74 | return "nan"; |
| 75 | } |
| 76 | if (std::signbit(value)) { |
| 77 | return "-infinity"; |
| 78 | } |
| 79 | return "+infinity"; |
| 80 | } |
| 81 | |
| 82 | std::string FormatBytesConstant(absl::string_view value) { |
| 83 | return internal::FormatBytesLiteral(value); |