Question

I got a error. “Passing argument 1 ‘strchr’ makes pointer from integer without a cast”

How can I fix that ?

this happen in const char *ptr = strchr(c, ';'); and I’m trying to do is just get the index of a specific char in a char array.

In my File, I have for example 100 lines, and in each line, i has something like that 12345;Lucas, so I need to split this, numbers and letters and I’m trying to search the ” ; ” and separate.

Follow my code

FILE *fp;
char c;
char c2[100];
int i = 0;

fp = fopen("MyFile.csv", "r");

if (!fp) {
    printf("Error!\n");
    exit(0);
}

while((c = getc(fp)) != EOF){
    for (i = 0; i < 1; i++)
{

        const char *ptr = strchr(c, ';');
        if(ptr) {
           int index = ptr - c;
           printf("%d", index);
        }

    }
    printf("%c", c);
}

Answer 1

Your variable c is a single character, not a char array.