31 lines
No EOL
844 B
C
31 lines
No EOL
844 B
C
#include <stdio.h>
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#include <string.h>
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void print_integers(int int_value, int* int_pointer)
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{
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printf("Got an integer value %d and an address to an integer with value %p\n", int_value, (void*)int_pointer);
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}
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void change_integers(int int_value, int* int_pointer)
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{
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int_value = 23;
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*int_pointer = int_value;
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}
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int main(int argc, char* argv[])
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{
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int int_value;
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int* int_pointer;
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int_value = 42;
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int_pointer = &int_value;
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//to point to a variable, we need to use here the '&' symbol before a variable, to get it's address.
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print_integers(int_value, int_pointer);
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change_integers(int_value, int_pointer);
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print_integers(int_value, int_pointer);
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//only, the value in the int_value changed, because we change it. But the address can't be changed, because we only change it's value.
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return 0;
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} |