gradient sampling baseline solver

[codecov[bot]]

Codecov Report

Attention: 129 lines in your changes are missing coverage. Please review.

Comparison is base (8c8f05d) 78.09% compared to head (aa3287d) 77.93%. Report is 1 commits behind head on master.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #80 +/- ## ========================================== - Coverage 78.09% 77.93% -0.17% ========================================== Files 220 223 +3 Lines 8853 9041 +188 Branches 2562 2614 +52 ========================================== + Hits 6914 7046 +132 - Misses 262 268 +6 - Partials 1677 1727 +50 ``` | [Files](https://app.codecov.io/gh/accosmin-org/libnano/pull/80?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=accosmin-org) | Coverage Δ | | |---|---|---| | [include/nano/function.h](https://app.codecov.io/gh/accosmin-org/libnano/pull/80?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=accosmin-org#diff-aW5jbHVkZS9uYW5vL2Z1bmN0aW9uLmg=) | `100.00% <ø> (ø)` | | | [include/nano/function/benchmark/elastic\_net.h](https://app.codecov.io/gh/accosmin-org/libnano/pull/80?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=accosmin-org#diff-aW5jbHVkZS9uYW5vL2Z1bmN0aW9uL2JlbmNobWFyay9lbGFzdGljX25ldC5o) | `100.00% <100.00%> (ø)` | | | [include/nano/function/benchmark/linear.h](https://app.codecov.io/gh/accosmin-org/libnano/pull/80?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=accosmin-org#diff-aW5jbHVkZS9uYW5vL2Z1bmN0aW9uL2JlbmNobWFyay9saW5lYXIuaA==) | `100.00% <100.00%> (ø)` | | | [include/nano/function/constraint.h](https://app.codecov.io/gh/accosmin-org/libnano/pull/80?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=accosmin-org#diff-aW5jbHVkZS9uYW5vL2Z1bmN0aW9uL2NvbnN0cmFpbnQuaA==) | `100.00% <ø> (ø)` | | | [include/nano/function/lambda.h](https://app.codecov.io/gh/accosmin-org/libnano/pull/80?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=accosmin-org#diff-aW5jbHVkZS9uYW5vL2Z1bmN0aW9uL2xhbWJkYS5o) | `60.00% <100.00%> (ø)` | | | [include/nano/function/penalty.h](https://app.codecov.io/gh/accosmin-org/libnano/pull/80?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=accosmin-org#diff-aW5jbHVkZS9uYW5vL2Z1bmN0aW9uL3BlbmFsdHkuaA==) | `100.00% <ø> (ø)` | | | [include/nano/linear/function.h](https://app.codecov.io/gh/accosmin-org/libnano/pull/80?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=accosmin-org#diff-aW5jbHVkZS9uYW5vL2xpbmVhci9mdW5jdGlvbi5o) | `100.00% <ø> (ø)` | | | [include/nano/lsearch0.h](https://app.codecov.io/gh/accosmin-org/libnano/pull/80?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=accosmin-org#diff-aW5jbHVkZS9uYW5vL2xzZWFyY2gwLmg=) | `100.00% <ø> (ø)` | | | [include/nano/program/constrained.h](https://app.codecov.io/gh/accosmin-org/libnano/pull/80?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=accosmin-org#diff-aW5jbHVkZS9uYW5vL3Byb2dyYW0vY29uc3RyYWluZWQuaA==) | `100.00% <100.00%> (ø)` | | | [include/nano/program/linear.h](https://app.codecov.io/gh/accosmin-org/libnano/pull/80?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=accosmin-org#diff-aW5jbHVkZS9uYW5vL3Byb2dyYW0vbGluZWFyLmg=) | `50.00% <ø> (ø)` | | | ... and [79 more](https://app.codecov.io/gh/accosmin-org/libnano/pull/80?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=accosmin-org) | |

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