Thread: Changing do while loop

How can i convert this do while loop within this segment of code into a for loop or while loop. My current attempt to change the do loop seems to work somewhat, but im having a problem where it does not go to the next line.

Code:

...
while(fgets(transinput,sizeof(transinput),in)!=NULL){
    i=0;

    do {
            for(j=0;j<npos;j++){
                transchar = transinput[i];
                if(transchar != '\n' && transchar != '\0'){
                    transtemp[j] = transchar;
                    ++i;
                } else {
                    transtemp[j] = ' ';
                }
            }
            for(ii=0;ii<npos;ii++){
                fprintf(out,"%c", transtemp[decrypt[ii]]);
            }
    }
    while(transchar != '\n' && transchar != '\0');

    fprintf(out,"\n");
}
...

My current attempt to change it

Code:

i=0;
while(fgets(input3,sizeof(input3),file1)!=NULL){
    ch = input3[i];


    while(ch != '\0' && ch!='\n'){
        for(j=0;j<npos;j++){
            //ch = input3[i];
            if(ch != '\0' && ch!='\n'){
                temp[j] = ch;
                ++i;
            } else {
                temp[j] = ' ';
            }


         }
         for(k=0;k<npos;k++){
             fprintf(file2,"%c", temp[transposition[k]]);
         }
    }


    fprintf(file2,"\n");


}