Convert char array into int array in C.

charToIntArray.c

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

static int intArray[255];
static char charArray[255] = "5 2 -3 4 0 9";
static int numInt = 0;

void charToIntArray() {
	char *p;
	char temp[10];
	int tempIndex = 0;
	int intArrayIndex = 0;
	int charArrayLen = strlen(charArray);

	// Empty the temp char array
	for(int j=0; j<10; j++) {
		temp[j] = ' ';
	}

	for(int i=0; i<charArrayLen; i++) {
		// Meets a space char
		if(charArray[i] == ' ') {
			// Convert the temp char array into an integer, and add the integer into integer array
			intArray[intArrayIndex] = (int) strtol(temp, &p, 10);
			intArrayIndex += 1;

			// Empty the temp char array
			for(int j=0; j<10; j++) {
				temp[j] = ' ';
			}
			tempIndex = 0;
		}
		else {
			// Record into temp char array
			temp[tempIndex] = charArray[i];
			tempIndex += 1;
		}
	}
	// Record last integer
	intArray[intArrayIndex] = (int) strtol(temp, &p, 10);
	intArrayIndex += 1;
	numInt = intArrayIndex;
}

int main()
{
    charToIntArray();
    for(int i=0; i<numInt; i++) {
        printf("%d ", intArray[i]);
    }
}