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       #Post#: 9--------------------------------------------------
       Datatypes Pointers and References
   DIR By: mathnathan
       Date: July 12, 2013, 5:13 pm
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       Here is the code we looked over together in class
       types.cpp
       --- Code ---
       #include <stdio.h>
       #include <climits>
       #include <cfloat>
       int main() {
       
       printf( "\nSize of basic types on this machine\n" );
       printf( "\tsizeof(int) = %lu bytes\n", sizeof(int));
       printf( "\tsizeof(double) = %lu bytes\n", sizeof(double));
       printf( "\tsizeof(float) = %lu bytes\n", sizeof(float));
       printf( "\tsizeof(char) = %lu bytes\n", sizeof(char));
       printf( "\tsizeof(bool) = %lu bytes\n", sizeof(bool));
       printf( "\tsizeof(long) = %lu bytes\n", sizeof(long));
       printf( "\tsizeof(short) = %lu bytes\n", sizeof(short));
       printf( "\tsizeof(long long) = %lu bytes\n", sizeof(long
       long));
       printf("----------------------------------\n");
       printf( "\nThis Machine's limits\n" );
       printf( "\tNumber of bits in a char object (byte) = %d\n",
       CHAR_BIT );
       printf( "\tMinimum value for an object of type char =
       %d\n", CHAR_MIN );
       printf( "\tMaximum value for an object of type char =
       %d\n", CHAR_MAX );
       printf( "\tMaximum value for an object of type unsigned
       char = %u\n", UCHAR_MAX );
       printf( "\tMinimum value for an object of type short =
       %d\n", SHRT_MIN );
       printf( "\tMaximum value for an object of type short =
       %d\n", SHRT_MAX );
       printf( "\tMaximum value for an object of type unsigned
       short = %u\n", USHRT_MAX );
       printf( "\tMinimum value for an object of type int =
       %d\n", INT_MIN );
       printf( "\tMaximum value for an object of type int =
       %d\n", INT_MAX );
       printf( "\tMaximum value for an object of type unsigned
       int = %u\n", UINT_MAX );
       printf( "\tMinimum value for an object of type long =
       %ld\n", LONG_MIN );
       printf( "\tMaximum value for an object of type long =
       %ld\n", LONG_MAX );
       printf( "\tMaximum value for an object of type unsigned
       long = %lu\n", ULONG_MAX );
       printf( "\tMinimum value for an object of type long long =
       %lld\n", LLONG_MIN );
       printf( "\tMaximum value for an object of type long long =
       %lld\n", LLONG_MAX );
       printf( "\tMaximum value for an object of type unsigned
       long long = %llu\n", ULLONG_MAX );
       printf( "\tMinimum finite representable floating-point
       number = %f\n", FLT_MIN );
       printf( "\tMaximum finite representable floating-point
       number = %f\n", FLT_MAX );
       printf( "\tNumber of decimal digits that can be rounded
       into a floating-point and back without change in the number of
       decimal digits = %d\n", FLT_DIG );
       printf( "\tMinimum finite representable double number =
       %f\n", DBL_MIN );
       printf( "\tMaximum finite representable double number =
       %f\n", DBL_MAX );
       printf( "\tNumber of decimal digits that can be rounded
       into a double and back without change in the number of decimal
       digits = %d\n", DBL_DIG );
       return 0;
       }
       --- End Code ---
       refs.cpp
       --- Code ---
       #include <stdio.h>
       #include <vector>
       
       int add1ref( int& a ) {
       return a += 1;
       }
       
       int add1copy( int a ) {
       return a += 1;
       }
       
       int* add1ptr( int* a ) {
       return a += 1;
       }
       
       
       int main() {
       
       int a = 1;
       printf( "a = %d\n", a);
       printf( "&a = %p\n", &a);
       
       int& aref = a;
       printf( "aref = %x\n", aref);
       printf( "&aref = %p\n", &aref);
       
       int* aptr = &a;
       printf( "aptr = %p\n", aptr);
       printf( "&aptr = %p\n", &aptr);
       
       printf("----------------------------------\n");
       printf("After adding 1 to a\n");
       a += 1;
       printf( "\ta = %d\n", a);
       printf( "\t&a = %p\n", &a);
       printf( "\taref = %x\n", aref);
       printf( "\t&aref = %p\n", &aref);
       printf( "\taptr = %p\n", aptr);
       printf( "\t&aptr = %p\n", &aptr);
       printf("After adding 1 to aref\n");
       aref += 1;
       printf( "\ta = %d\n", a);
       printf( "\t&a = %p\n", &a);
       printf( "\taref = %x\n", aref);
       printf( "\t&aref = %p\n", &aref);
       printf( "\taptr = %p\n", aptr);
       printf( "\t&aptr = %p\n", &aptr);
       
       int b = 15;
       int* c = &b;
       std::vector<int> intVec;
       
       return 0;
       
       }
       --- End Code ---
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