read line by line text file

#include <stdio.h>

void process_line(const char* line)
{
    // you line processing here
}

void test()
{
    FILE* f = fopen("myfile.txt", "r");
    if (f)
    {
        // replace the line below to "for (;;)" if you want to process all lines
        for (int i=0; i<3; ++i)
        {
            const int MAX_LINE_LENGTH = 0x100;
            char line[MAX_LINE_LENGTH];
            if (!fgets(line, sizeof(line), f))
                break;
            int len = strlen(line);
            if (len>0 && line[len-1]=='\n')
                line[len-1] = 0;
            process_line(line);
        }
        fclose(f);
    }
}