The MapleToGMPInteger function returns a pointer to the GMP integer used to represent the Maple integer s.  The pointer returned is of type mpz_ptr.

The GMP integer returned may be the actual GMP integer used by Maple.  Thus these variables should only be used for reading, never writing.

If you are using GMP in your external library, you should use MaplePushGMPAllocators to set your own memory allocator functions.

$\mathrm{with}\left(\mathrm{ExternalCalling}\right)\:$

$\mathrm{dll}≔\mathrm{ExternalLibraryName}\left(''HelpExamples''\right)\:$

$\mathrm{PrintInt}≔\mathrm{DefineExternal}\left(''PrintInt''\,\mathrm{dll}\right)\:$

$\mathrm{PrintInt}\left(0\right)$

m 0
g 0

$\mathrm{PrintInt}\left(1\right)$

m 1
g 1

$\mathrm{PrintInt}\left({10}^6\right)$

m 1000000
g 1000000

$\mathrm{PrintInt}\left(7^{128}\right)$

m 1487815647197611695910312681741273570332356717154798949898498305086387315423300999654757561928633305897036801
g 1487815647197611695910312681741273570332356717154798949898498305086387315423300999654757561928633305897036801