| grand_parent: Standard API | |
| parent: Numerics Library | |
| nav_order: 2 | |
| # `<cuda/std/complex>` | |
| ## Omissions | |
| When using libcu++ with NVCC, `complex` does not support `long double` or | |
| `complex` literals (`_i`, `_if`, and `_il`). | |
| NVCC warns on any usage of `long double` in device code, because `long double` | |
| will be demoted to `double` in device code. | |
| This warning can be suppressed silenced with `#pragma`s, but only globally, not | |
| just when using `complex`. | |
| User-defined floating-point literals must be specified in terms of | |
| `long double`, so they lead to warns that are unable to be suppressed. | |