CODEWITHSUNDEEP
cpointersmemory
Patricio S
Patricio S

Reputation: 2130

Why do I get these memory addresses?

I was wondering why I get these memory addresses in this simple program.

#include <stdio.h>

int main() {
    char *a = "buffera";
    char *b = "bufferbb";

    printf("%p %p\n", a, b);

    return 0;
}

Output I get is.

00403064 0040306C

Supposedly each character occupies one byte in memory (two hex numbers), then if the string a occupy 7 + 1 = 8 bytes in memory and the address of a starts at 0x00403064, then according to me it should end at 0x00403079 and not at 0x0040306B.

Upvotes: 0

Views: 69

Answers (2)

Bill Lynch
Bill Lynch

Reputation: 81936

0x00403064 + 0x8 == 0x0040306C

Note that these numbers are in hexadecimal.

But either way, while these strings can't overlap, they don't need to be placed anywhere near each other in memory.

Upvotes: 1

Scott Hunter
Scott Hunter

Reputation: 49813

0043064 + 8 = 0040306C; I don't know where you get 00403079 from.

Upvotes: 4

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