Split a string(C)

[oror84]

hello,
i have a problem to split a string.
i have this sentence :
char str1[100] = "hello this is my sentence and max(a,b) is my method";

i want to to split the sentence from the max(a,b) to 2 strings.

with :
char *str2;
str2 = strstr(str1,"max");
now i took the right side of the sentence to str2.
bow how can i take the left side to other string?
maby how can i get the place of max by numbers(lenght)?
i didnt find any str command to do this.
i`ll happy if someone help me.
Thanks ,
Or.

[DRK]

Length of str1 before str2 starts:

int len = str2 - str1;

There are 2 ways:

You can create new string

char str3[100] = {0};
if (len > 0)
{
    strncpy(str3, str1, len);
}

Or you can modify existing str1 by inserting terminating character.

if (len > 0)
{
    str1[len - 1] = 0;
}

[CommonTater]

hello,
i have a problem to split a string.
i have this sentence :
char str1[100] = "hello this is my sentence and max(a,b) is my method";

i want to to split the sentence from the max(a,b) to 2 strings.

with :
char *str2;
str2 = strstr(str1,"max");
now i took the right side of the sentence to str2.
bow how can i take the left side to other string?
maby how can i get the place of max by numbers(lenght)?
i didnt find any str command to do this.
i`ll happy if someone help me.
Thanks ,
Or.

Ok... you need to do three things here...

#include <stdlib.h>
#include <string.h>

int main (void)
  {   // testing example
      char test[] = "hello this is my sentence and max(a,b) is my method";
      char *Left;
      char *Right;
         
       // first make a copy
       Left = strdup(test);

       // second locate the desired text
       Right = strstr(Left,"max");

       // third split the string
       *(Right - 1) = '\0';

       // print the results
       printf("Original : %s\nLeft side: %s\nRight side: %s\n\n",test,Left,Right);

       // clean up the mess
       free(Left);
     
       // and exit
       return 0; }

[oror84]

Great, You helped me alot!
Thank you very much!!

[timpco]

Or you can modify existing str1 by inserting terminating character.

if (len > 0)
{
    str1[len - 1] = 0;
}

Thank you,

I have had so many errors trying to change filename strings. Nothing seemed to work until this and it's very simple like it should be too.