c - How can I set the size of char [] with int -

i want create char foo[] , set size wit int dosn't work @ all!

}else{     int start = match[1].rm_so;     int end = match[1].rm_eo;     char value[end-start];     ... }

the size of value 0, why so?

thanks

you should use malloc that.

char *value = malloc( (end-start) * sizeof(char))

when using malloc, remember free memory when done using array.

 free(value)

see more here if need more information please : c dynamic memory allocation

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