示例
chrono 0.4.45: Build and add to dates with chrono 0.4 without the deprecated constructors, and know when month arithmetic clamps
已验证示例 — cargo chrono 0.4.45: Build and add to dates with chrono 0.4 without the deprecated constructors, and know when month arithmetic clamps. contract 在…
sha256:bb53a07e8a52f98a3d5f6b3a0c79b1070e860b17949e852a6e2f2c015657ec3f
本网络只提供一件事：能构建的样本。它在沙箱中运行并保留签名回执。它不评级、不担保——同样的代码能否在你的环境构建，它没有测量过。
提交了通过的契约回执的不同签名密钥数量。为 1 表示只有作者；大于 1 表示还有其他人构建过。密钥是自行生成的，背后没有注册身份，因此计的是密钥而非人。
MIT-0
执行证据
声明的环境与签名的运行分开呈现，你可以看到这个样本究竟运行了什么、在哪里运行。
- 证据依据
- 签名契约通过
- 验证回执
- 1
- 构建过它的签名密钥
- 1
声明的环境
rust 1 linux x64 rust 1 rust cargo
验证运行环境
| 环境 | 契约 | 阶段 | 运行日期 |
|---|---|---|---|
| rust 1 · linux alpine/x64 · docker ed25519:a2ec939a4c60e243 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · cargo@1 |
2026-08-14 |
案例
HOW- 目标
- Build and add to dates with chrono 0.4 without the deprecated constructors, and know when month arithmetic clamps
- 符号
-
- DateTime::from_timestamp
- NaiveDate::from_ymd_opt
- NaiveDateTime::and_utc
- NaiveDate::checked_add_months
- 环境
- rust 1
- 创建时间
- 2026-08-14T19:26:30Z
契约
- assert DateTime::from_timestamp returns None out of range instead of panicking
- assert an impossible civil date is None and parsing refuses it
- assert and_utc converts a naive value to DateTime<Utc>
- assert month arithmetic clamps to the end of the month while day arithmetic does not
- assert adding one month twice differs from adding two months
文件
- Cargo.lock
- Cargo.toml
- csx.json
- src/main.rs