c - How Read File And Separate Values -

i'm trying read file this:

ninp=20 nout=1 nlaye=3 hid=30 er=0.001 epo=100 eporep=100 pscpa=0 tip=aggr net=emi numprec=0.25 prec=nh3;nox;pm10;so2;voc rag=4 

and must read values after =, , prec's values, must separate every single value (delimited ;) new line , write new file like:

nh3 nox pm10 so2 voc 

to read after equals symbolt there no problems, can't separate price.

this function:

void settaggirete(char values[20][50]){     char line[50];      int = 0, j = 0;     char str[10][20];     file *conf = fopen("conf.txt", "r");     if(conf == null){         printf("impossibile apripre il file conf\n");         exit(exit_failure);     }      //ciclo sulle linee del file di configurazione     while(fgets(line, sizeof(line), configrete) != null){ //        leggo valori contenuti dopo =         if(i==10){             char * str = values[10];             sscanf(line, "%*[^=]=%s", values[i]);             while ((token = strsep(line, ";")) != null){                 str[j] = token;                  j++;             }         }else{             sscanf(line, "%*[^=]=%s", values[i]);         }         i++;     }     fclose(configrete);     } 

so how can separate values??

you can't assign array this

str[j] = token; 

try

strcpy(str[j], token); 

althought dangerous do, could

size_t length = strlen(token); if (length >= sizeof(str[j]))     length = sizeof(str[j]) - 1; memcpy(str[j], token, length); str[j][length] = '\0'; 

notice writing safe code @ expense of trimming token, better approach use dynamic allocation.

you also, redeclared str inside loop, delete line

char * str = values[10]; 

which presumably wrong depending on how declared values.