Change one letter from a string

Code:

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#include <stdio.h>

int main() {
  char* string="monkey";
  char* ptr=string;
  *ptr='d';
  puts(string); // Seg fault error
}

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How to fix this?

By not doing this:

Code:

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*ptr='d';

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:)

Basically, you are not allowed to change a string literal. Any attempt to do so results in undefined behaviour.

Redefine string

Code:

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char string[]="monkey";

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Are you trying to make a donkey out of me? :p

Code:

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#include <stdio.h>
#include <string.h>

int main() {
  char string[]={"monkey"};
  char* ptr=NULL;
  ptr= strchr(string, 'm');
  if(ptr)
      *ptr='d';

  puts(string);

  return 0;
}

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Quote:

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Originally Posted by gunitinug

Code:

---

#include <stdio.h>

int main() {
  char* string="monkey";
  char* ptr=string;
  *ptr='d';
  puts(string); // Seg fault error
}

---

How to fix this?

---

when you intialize a string constant to char pointer, the stringconstant is stored in a text or code (Which is read-only file).

Code:

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char *string="monkey";

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So, redefine to a char array

Code:

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char string[]="monkey";

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Understand the difference between string and string constant.