openswmm::detail Namespace Reference

Functions
locale_t	c_locale () noexcept
	Process-wide "C" locale handle for strtod_l.

Function Documentation

c_locale()

locale_t openswmm::detail::c_locale ( )

inlinenoexcept

Process-wide "C" locale handle for strtod_l.

Plain strtod consults the current global locale on every call to find the decimal separator. Pinning the C locale removes that work and, more importantly, makes the conversion locale-independent — which is what std::from_chars guarantees on the platforms that take the other branch. Without it a host running under a comma-decimal locale would parse "0.013" as 0.

Constructed once on first use. If newlocale() fails the handle is null and the call sites fall back to plain strtod.

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