c - Setting/clearing LSB of an audio sample -

i'm wondering if me out setting/clearing lsb of audio sample

the code below goes through array of 24 elements , each element added file new line follows.

file *fp; fp = fopen(embedfile, "w");     (int = 0; < 24; i++){         fprintf(fp, "%d\n", bits[i]);     }    fclose(fp); 

when open file has been written way want them to.

what i'm trying is, read line , compare value, if it's 0 clear lsb of audio sample, else set 1, code below:

file *embedfile = fopen(embedfile, "r");     int line = 0;     char input[12];     char *zero = "0";     char *one = "1";  while (fgets(input, 12, embedfile)) {     //duplicates key sample prior lsb modification     outputframes[frame] = inputframes[frame];     //sets lsb of audio sample match current line being read text file.     if (strcmp(input, zero) == 0)     {         //clear lsb         outputframes[frame] &= ~1;         printf("%u bit inserted\n", outputframes[frame] &= ~1);     }      else     {         //set lsb         outputframes[frame] |= 1;         printf("%u bit inserted\n", outputframes[frame] |= 1);      }     //next frame     frame++; } 

the print outs aren't showing thought would, instead get:

1 bit inserted 1 bit inserted 4294967295 bit inserted 4294967295 bit inserted 1 bit inserted 3 bit inserted 1 bit inserted 

the .txt file has these values start print out should match them if did conditions correctly.

0 0 1 0 0 0 1 

if point out going wrong appreciate that, i'm @ loss why outputs aren't expected them.

thanks

after little more looking found issue code.

file *fp; fp = fopen(embedfile, "w");     (int = 0; < 24; i++){         fprintf(fp, "%d\n", bits[i]);     }    fclose(fp); 

i mentioned in original post new line follows each insertion.

however my, chars compare don't take account these new lines.

char *zero = "0"; char *one = "1"; 

after changing them code below, outputs correct.

char *zero = "0\n"; char *one = "1\n"; 

@undwind thank suggestion, after looking @ it, way makes more sense.

thank you.