separating string between commas into an array in c -


i want split string several strings stored in array (of strings). tried use strtok_r, couldn't work. tried doing using code: 

int r=0; int c=0; (int e=0;buf2[e]!=null;e++) {     if (buf2[e]!=",") {         monsters[i].types[c][r] = buf2[e];         r++;     } else {         r=0;         c++;     } }

buf2 string i'm splitting, monsters[i].types[c] array of strings i'm splitting into. when this, gives me: 

in file included main.c:7:0: resource.h: in function ‘main’: resource.h:97:22: warning: comparison between pointer , integer [enabled default]   (int e=0;buf2[e]!=null;e++) {                       ^ resource.h:98:14: warning: comparison between pointer , integer [enabled default]    if (buf2[e]!=",") {               ^

i tried putting ascii values instead of null & ",", , didn't give me warnings, didn't work. , there way include 2 variable declarations before for loop, next other int declaration?

edit:

so tried using strtok, code: 

buf3 = strtok(buf2,","); strcpy(monsters[i].types[0],buf3); (int e=1;buf3!=null;e++) {     buf3 = strtok(null,",");     strcpy(monsters[i].types[e],buf3); }

this gives me segmentation fault (core dumped)

reedit:

ok, needed switch order of setting buf3 & strcpy:

buf3 = strtok(buf2,","); (int e=0;buf3!=null;e++) {     strcpy(monsters[i].types[e],buf3);     buf3 = strtok(null,","); }

firstly, character constant syntax in c language uses single quotation marks: ',', not ",".

secondly, don't compare character values null. null reserved pointer contexts. terminating 0 character can described '\0' or 0.

thirdly, there dedicated library functions designed simplify task, strtok. don't know though whether can use them.

as variable declarations, yes, can put them in for long have same type

for (int e = 0, r = 0, c = 0; ...

note though variables declared in way not available after for. , need c after for.


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