remove non-idiomatic increment/decrement

6f2b626d · rsc · 51716a86 · 6f2b626d · 6f2b626d · 6f2b626d
--- a/console.c
+++ b/console.c
@@ -53,7 +53,7 @@ real_cons_putc(int c)
  } else {
    c |= 0x0700; // black on white
    crt[ind] = c;
-    ind += 1;
+    ind++;
  }

  if((ind / 80) >= 24){
@@ -100,10 +100,8 @@ printint(int xx, int base, int sgn)
  if(neg)
    buf[i++] = '-';

-  while(i > 0){
-    i -= 1;
+  while(--i >= 0)
    real_cons_putc(buf[i]);
-  }
 }

 /*

--- a/fd.c
+++ b/fd.c
@@ -104,6 +104,6 @@ fd_incref(struct fd *fd)
  acquire(&fd_table_lock);
  if(fd->count < 1 || fd->type == FD_CLOSED)
    panic("fd_reference");
-  fd->count += 1;
+  fd->count++;
  release(&fd_table_lock);
 }
--- a/trap.c
+++ b/trap.c
@@ -71,13 +71,8 @@ trap(struct Trapframe *tf)
    if(cpus[cpu()].nlock)
      panic("timer interrupt while holding a lock");
    if(cp){
-#if 1
      if((read_eflags() & FL_IF) == 0)
        panic("timer interrupt but interrupts now disabled");
-#else
-      cpus[cpu()].clis += 1;
-      sti();
-#endif
      if(cp->killed)
        proc_exit();
      if(cp->state == RUNNING)