Question

How can I search for a specific character in a char array ?

Follow my code, but I think it’s not correct in the function strchr:

while((c = getc(fp)) != EOF) {
   for (i = 0; i < 1; i++) {
      c2[i] = c;
      int test = strchr(";", c2[i]);
   }
   printf("%c", c);
}

I have a structure that has int index, int data, and a pointer to the next register. I fill an array (c2[100]) with some data that come from my .cvs file. In the first register of my array I got something like this: 800;lucas . I need to find the character ‘;’ in this array and split it, and then the number 800 will be the structure->index and the name ‘lucas’ will be the structure->data.

Answer 1

For each character that is read, you are storing it into the first slot of your c2[] array (ignoring the rest of the array), and then calling strchr() to check if the read character is a ; or not. Using strchr() for that is overkill. The following would be much simplier:

while((c = getc(fp)) != EOF)
{ 
    if (c == ';')
    {
        ...
    }
    printf("%c", c); 
} 

If you are actually trying to search your array instead, then you are using strchr() the wrong way. It should be more like this instead, assuming c2[] already contains the null-terminated string data you want to search in:

while((c = getc(fp)) != EOF)
{ 
    int test = strchr(c2, c); 
    ...
    printf("%c", c); 
}