strange error msg

[jokes_finder]

Hello world!!

I was trying to make a function that replaces some given string with another given string throughout a give string.

but a strange error showed up. When I tried small pieces of code the error appeared again with on trying to execute the following code:

void f(char * ptr)
{
	*(ptr) = 'a';
}

int main(void)
{
	char * strng = "Hello world. The world is just awesome";
	puts(strng);
	f(strng);
}

error appears when trying to execute *(ptr) = 'a';

error msg:

Unhandled exception at 0x011c17a1 in replacing string 2.0.exe: 0xC0000005: Access violation writing location 0x011c5d30.

Thanks in advance.

[CommonTater]

That's because you're trying to change a string literal. No decent compiler will let you do that.

char *string = strdup("! Hello World"); // write to an actual string

*string ='X';

printf("%s",string);

free(string); // because strdup uses malloc()

[GReaper]

Or you can define it this way:

char string[ ] = "Hello World!";