I have a char array in C with numbers separated by comma, and need to convert it to an int array. However when I try to use strtok, it crashes with EXC_BAD_ACCESS. Can you help me please?
The method
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#define ARRAY_LEN (0x100)
#define OUTPUT_LEN (0x400)
unsigned int StaticAnalyze_load( char* data, char delimiter, int* array, unsigned int length ){
char *token;
int i=0;
// CRASHES HERE (BAD ACCESS)
token = strtok(data, &delimiter);
while( token != NULL ) {
array[i] = atoi(token);
token = strtok(NULL, &delimiter);
i++;
}
for(i=0;i<3;i++) {
printf("%d\n", array[i]);
}
return length;
}
Main
int main(int argc, const char * argv[]) {
char *data = "13,654,24,48,1,79,14456,-13,654,13,46,465,0,65,16,54,1,67,4,6,74,165,"
"4,-654,616,51,654,1,654,654,-61,654647,67,13,45,1,54,2,15,15,47,1,54";
int array[ARRAY_LEN]; // array, I need to fill-in with integers from the string above
unsigned int loaded = StaticAnalyze_load(data, ',', array, ARRAY_LEN);
return 0;
}
data
in main
is a pointer to a literal string that strtok
cannot modify.
strchr
could be used to identify the tokens.
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#define ARRAY_LEN (0x100)
#define OUTPUT_LEN (0x400)
unsigned int StaticAnalyze_load( char* data, char delimiter, int* array, unsigned int length ){
char *token = data;
int i=0;
while( i < ARRAY_LEN && token != NULL ) {
array[i] = atoi(token);
token = strchr(token, delimiter);
if ( token) {
++token;
}
i++;
}
for(i=0;i<3;i++) {
printf("%d\n", array[i]);
}
return length;
}
int main(int argc, const char * argv[]) {
char *data = "13,654,24,48,1,79,14456,-13,654,13,46,465,0,65,16,54,1,67,4,6,74,165,"
"4,-654,616,51,654,1,654,654,-61,654647,67,13,45,1,54,2,15,15,47,1,54";
int array[ARRAY_LEN]; // array, I need to fill-in with integers from the string above
unsigned int loaded = StaticAnalyze_load(data, ',', array, ARRAY_LEN);
return 0;
}