#include int main(int argc, char** argv) { FILE* fp = fopen("foo.raw", "w"); float fsum = -9.9999; fwrite(&fsum, sizeof(float), 1, fp); char bsum = 19; fwrite(&bsum, sizeof(char), 1, fp); short int isum = -2999; fwrite(&isum, sizeof(short int), 1, fp); long lsum = -399999; fwrite(&lsum, sizeof(long), 1, fp); fclose(fp); }