Guile Reference Manual: Foreign Pointers

Warning: This is the manual of the legacy Guile 2.0 series. You may want to read the manual of the current stable series instead.

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6.20.5 Foreign Pointers

The previous sections have shown how Guile can be extended at runtime by loading compiled C extensions. This approach is all well and good, but wouldn’t it be nice if we didn’t have to write any C at all? This section takes up the problem of accessing C values from Scheme, and the next discusses C functions.

• Foreign Types: Expressing C types in Scheme.

• Foreign Variables: Pointers to C symbols.

• Void Pointers and Byte Access: Pointers into the ether.

• Foreign Structs: Packing and unpacking structs.