# static symbols too?

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Continuing in the context of this previous post…

1. Select a `static` symbol from the `R` sources, like `Connections`

$ grep "static Rconnection Connections" src/main/connections.c static Rconnection Connections[NCONNECTIONS];

2. Get its address

$ objdump -t `R RHOME`/bin/exec/R | awk '/ Connections/ {print $1}' 000000000093b700

3. Use the symbol

> library(inline) > code <- " + typedef struct { char *class, *description; } *Rconnection; + Rconnection *Connections = (Rconnection*)0x000000000093b700; + return mkString(Connections[0]->description); + " > ConZeroDesc <- cfunction(signature(), code, language="C") > ConZeroDesc() [1] "stdin"

This effect could probably be prevented by selecting additional compiler and/or and linker options.

P.S. Nice job Oleg Sklyar, Duncan Murdoch, Mike Smith, Dirk Eddelbuettel, Romain Francois with `inline-0.3.5`

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