Re: wrapping C code - my exercise in incompetence.

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  • Posted by jmduro Jan 09, 2016
  • 2335 views

I uploaded a library to allocate, write, read and free structures in memory. Pointers and variables are automatically sized according to OEU version and OS Architecture.

Here is an example of use, no matter if your system is 32-bit or 64-bit, no matter if you use OEU 4.05 or OEU 4.1. 

atom p = NULL 
atom s1 = allocate_string("A string") 
p = allocateStructure(p, {C_POINTER, C_INT, C_FLOAT} ) 
writeStructure(p, {C_POINTER, C_INT, C_INT}, {s1, 12, 25.2} ) 
sequence s2 = readStructure(p, {C_POINTER, C_INT, C_INT} ) 
printf(1, "s2[1] = %s, s2[2] = %d, s2[3] = %4.1f\n", {peek_string(s2[1]), s2[2], s2[3]}) 
freeStructure(p, {C_POINTER, C_INT, C_INT} )

Jean-Marc

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