GCC detect 32 or 64 bit system
For example:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 | #include <iostream>#if __x86_64__#define ENV64BIT#else#define ENV32BIT#endifusing namespace std;int main() { #ifdef ENV64BIT cout << "64 bit" << endl; #endif #ifdef ENV32BIT cout << "32 bit" << endl; #endif} |
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