Concatenate two preprocessor tokens by juxtaposition, forcing an extra expansion pass.
Declared in <folly/Preprocessor.h>
#define FB_VA_GLUE(a, b)
MSVC's preprocessor is a pain, so we have to forcefully expand the VA args in some places.
| Name | Description |
|---|---|
| a | The first token. |
| b | The second token, placed after a. |