Error compiling beta 3

I'm running Mandrake 7.02 with 2.2.14 kernel, and i got a compilation problem :
pgconnection.h:25: string: Aucun fichier ou rpertoire de ce
type #include <string> seems to be incorrect, i changed it to #include
<string.h> but then i have :
pgconnection.h:67: syntax error before `('
line 67 is :
string IntToString(int);
function InToString isn't defined if string.h, neither in strings.h
What is the correct library to use ?

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Guillaume Rousse

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