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Add UnsetEnv function #677

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merged 5 commits into from
Aug 8, 2023
Merged

Add UnsetEnv function #677

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632d3b5
Add unsetenv
rongou Jan 11, 2023
276c2d7
update doxygen file
rongou Jan 11, 2023
bf5bbd2
use doxygen 1.9.5
rongou Jan 11, 2023
7ee68d9
comment out clang options
rongou Jan 11, 2023
8de0487
Merge branch 'main' into unset-env
hcho3 Aug 8, 2023
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15 changes: 15 additions & 0 deletions include/dmlc/parameter.h
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Original file line number Diff line number Diff line change
Expand Up @@ -60,6 +60,12 @@ template<typename ValueType>
inline void SetEnv(const char *key,
ValueType value);

/*!
* \brief Unset environment variable.
* \param key the name of environment variable.
*/
inline void UnsetEnv(const char *key);

/*! \brief internal namespace for parameter manangement */
namespace parameter {
// forward declare ParamManager
Expand Down Expand Up @@ -1149,5 +1155,14 @@ inline void SetEnv(const char *key,
setenv(key, e.GetStringValue(&value).c_str(), 1);
#endif // _WIN32
}

// implement UnsetEnv
inline void UnsetEnv(const char *key) {
#ifdef _WIN32
_putenv_s(key, "");
#else
unsetenv(key);
#endif // _WIN32
}
} // namespace dmlc
#endif // DMLC_PARAMETER_H_
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