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| author | Dan Goodliffe <dan@randomdan.homeip.net> | 2024-09-19 19:55:14 +0100 |
|---|---|---|
| committer | Dan Goodliffe <dan@randomdan.homeip.net> | 2024-09-19 19:55:14 +0100 |
| commit | b16d51e7d108c50e960d4598cb7cd47854c76f3e (patch) | |
| tree | 8b3ef10ee888eaaf52b46f343fa6b02968a623e7 | |
| parent | Add new mathematical constants to lib (diff) | |
| download | ilt-b16d51e7d108c50e960d4598cb7cd47854c76f3e.tar.bz2 ilt-b16d51e7d108c50e960d4598cb7cd47854c76f3e.tar.xz ilt-b16d51e7d108c50e960d4598cb7cd47854c76f3e.zip | |
Add helper to quickly parse an ISO date/time
| -rw-r--r-- | lib/chronology.cpp | 12 | ||||
| -rw-r--r-- | lib/chronology.h | 2 |
2 files changed, 14 insertions, 0 deletions
diff --git a/lib/chronology.cpp b/lib/chronology.cpp new file mode 100644 index 0000000..8707bba --- /dev/null +++ b/lib/chronology.cpp @@ -0,0 +1,12 @@ +#include "chronology.h" + +time_t +operator""_time_t(const char * iso, size_t) +{ + struct tm tm {}; + + if (const auto end = strptime(iso, "%FT%T", &tm); !end || *end) { + throw std::invalid_argument("Invalid date"); + } + return mktime(&tm); +} diff --git a/lib/chronology.h b/lib/chronology.h index 1980116..688a1f7 100644 --- a/lib/chronology.h +++ b/lib/chronology.h @@ -1,5 +1,7 @@ #pragma once #include <chrono> +#include <ctime> using TickDuration = std::chrono::duration<float, std::chrono::seconds::period>; +time_t operator""_time_t(const char * iso, size_t); |