use C++ std::stoi et al instead of boost::lexical_cast

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use C++ std::stoi et al instead of boost::lexical_cast #3201

Closed mitzimorris closed 1 year ago

mitzimorris commented 1 year ago

Summary:

see https://github.com/stan-dev/cmdstan/issues/1170

Description:

Replace use of boost::lexical_cast with std::sto* methods, introduced in C++11.

Current Version:

v2.32.2

WardBrian commented 1 year ago

https://github.com/stan-dev/stan/pull/3206