Helper macro that provides a way to pass argument with commas in it to some other macro whose syntax doesn't allow using extra parentheses. Example:

Synopsis

Declared in <folly/Preprocessor.h>

#define FB_SINGLE_ARG(…​)

Description

#define MACRO(type, name) type name MACRO(FB_SINGLE_ARG(std::pair<size_t, size_t>), x);

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