/* PSPP - a program for statistical analysis.
- Copyright (C) 2006, 2010, 2011 Free Software Foundation, Inc.
+ Copyright (C) 2006, 2010, 2011, 2013 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
|| format == INTEGER_VAX);
}
-/* Converts the CNT bytes in INTEGER from SRC integer_format to DST
+/* Converts the N bytes in INTEGER from SRC integer_format to DST
integer_format. */
void
integer_convert (enum integer_format src, const void *from,
enum integer_format dst, void *to,
- size_t cnt)
+ size_t n)
{
if (src != dst)
- integer_put (integer_get (src, from, cnt), dst, to, cnt);
+ integer_put (integer_get (src, from, n), dst, to, n);
else if (from != to)
- memcpy (to, from, cnt);
+ memcpy (to, from, n);
}
-/* Returns the value of the CNT-byte integer at FROM, which is in
+/* Returns the value of the N-byte integer at FROM, which is in
the given FORMAT. */
uint64_t
-integer_get (enum integer_format format, const void *from_, size_t cnt)
+integer_get (enum integer_format format, const void *from_, size_t n)
{
const uint8_t *from = from_;
uint64_t value = 0;
size_t i;
assert (is_integer_format (format));
- assert (cnt <= 8);
+ assert (n <= 8);
switch (format)
{
case INTEGER_MSB_FIRST:
- for (i = 0; i < cnt; i++)
+ for (i = 0; i < n; i++)
value = (value << 8) | from[i];
break;
case INTEGER_LSB_FIRST:
- for (i = 0; i < cnt; i++)
- value = (value << 8) | from[cnt - i - 1];
+ for (i = 0; i < n; i++)
+ value = (value << 8) | from[n - i - 1];
break;
case INTEGER_VAX:
- for (i = 0; i < (cnt & ~1); i++)
+ for (i = 0; i < (n & ~1); i++)
value = (value << 8) | from[i ^ 1];
- if (cnt & 1)
- value = (value << 8) | from[cnt - 1];
+ if (n & 1)
+ value = (value << 8) | from[n - 1];
break;
}
return value;
}
-/* Stores VALUE as a CNT-byte integer at TO, in the given
+/* Stores VALUE as a N-byte integer at TO, in the given
FORMAT. */
void
-integer_put (uint64_t value, enum integer_format format, void *to_, size_t cnt)
+integer_put (uint64_t value, enum integer_format format, void *to_, size_t n)
{
uint8_t *to = to_;
size_t i;
assert (is_integer_format (format));
- assert (cnt < 8);
+ assert (n <= 8);
- value <<= 8 * (8 - cnt);
+ value <<= 8 * (8 - n);
switch (format)
{
case INTEGER_MSB_FIRST:
- for (i = 0; i < cnt; i++)
+ for (i = 0; i < n; i++)
{
to[i] = value >> 56;
value <<= 8;
}
break;
case INTEGER_LSB_FIRST:
- for (i = 0; i < cnt; i++)
+ for (i = 0; i < n; i++)
{
- to[cnt - i - 1] = value >> 56;
+ to[n - i - 1] = value >> 56;
value <<= 8;
}
break;
case INTEGER_VAX:
- for (i = 0; i < (cnt & ~1); i++)
+ for (i = 0; i < (n & ~1); i++)
{
to[i ^ 1] = value >> 56;
value <<= 8;
}
- if (cnt & 1)
- to[cnt - 1] = value >> 56;
+ if (n & 1)
+ to[n - 1] = value >> 56;
break;
}
}