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commit 32bead5b6d6edc4421a8ca628ce7dc14d435202a
Author: Will Newton <will.newton@linaro.org>
Date: Thu Jul 10 09:18:03 2014 +0100
iconv/loop.c: Fix -Wundef warning with !_STRING_ARCH_unaligned
If code is required to handle the unaligned case then loop.c includes
itself and relies on the #undefs at the end of the file to avoid
outputting two copies of LOOPFCT and gconv_btowc. However
MAX_NEEDED_INPUT is tested with #if so this causes a warning.
Reorder the code so that the function definitions are in an #else
block to make the behaviour clearer and fix the warning.
Verified that code is unchanged on x86_64 and arm.
ChangeLog:
2014-07-17 Will Newton <will.newton@linaro.org>
* iconv/loop.c: Move definition of LOOPFCT and gconv_btowc
into an #else block.
diff --git a/iconv/loop.c b/iconv/loop.c
index 7b2499a3d0657265..9152209b67d32481 100644
--- a/iconv/loop.c
+++ b/iconv/loop.c
@@ -354,12 +354,10 @@ FCTNAME (LOOPFCT) (struct __gconv_step *step,
# define DEFINE_UNALIGNED
# include "loop.c"
# undef DEFINE_UNALIGNED
-#endif
-
-
-#if MAX_NEEDED_INPUT > 1
-# define SINGLE(fct) SINGLE2 (fct)
-# define SINGLE2(fct) fct##_single
+#else
+# if MAX_NEEDED_INPUT > 1
+# define SINGLE(fct) SINGLE2 (fct)
+# define SINGLE2(fct) fct##_single
static inline int
__attribute ((always_inline))
SINGLE(LOOPFCT) (struct __gconv_step *step,
@@ -369,37 +367,37 @@ SINGLE(LOOPFCT) (struct __gconv_step *step,
size_t *irreversible EXTRA_LOOP_DECLS)
{
mbstate_t *state = step_data->__statep;
-#ifdef LOOP_NEED_FLAGS
+# ifdef LOOP_NEED_FLAGS
int flags = step_data->__flags;
-#endif
-#ifdef LOOP_NEED_DATA
+# endif
+# ifdef LOOP_NEED_DATA
void *data = step->__data;
-#endif
+# endif
int result = __GCONV_OK;
unsigned char bytebuf[MAX_NEEDED_INPUT];
const unsigned char *inptr = *inptrp;
unsigned char *outptr = *outptrp;
size_t inlen;
-#ifdef INIT_PARAMS
+# ifdef INIT_PARAMS
INIT_PARAMS;
-#endif
+# endif
-#ifdef UNPACK_BYTES
+# ifdef UNPACK_BYTES
UNPACK_BYTES
-#else
+# else
/* Add the bytes from the state to the input buffer. */
assert ((state->__count & 7) <= sizeof (state->__value));
for (inlen = 0; inlen < (size_t) (state->__count & 7); ++inlen)
bytebuf[inlen] = state->__value.__wchb[inlen];
-#endif
+# endif
/* Are there enough bytes in the input buffer? */
if (MIN_NEEDED_INPUT > 1
&& __builtin_expect (inptr + (MIN_NEEDED_INPUT - inlen) > inend, 0))
{
*inptrp = inend;
-#ifdef STORE_REST
+# ifdef STORE_REST
while (inptr < inend)
bytebuf[inlen++] = *inptr++;
@@ -408,12 +406,12 @@ SINGLE(LOOPFCT) (struct __gconv_step *step,
inend = &bytebuf[inlen];
STORE_REST
-#else
+# else
/* We don't have enough input for another complete input
character. */
while (inptr < inend)
state->__value.__wchb[inlen++] = *inptr++;
-#endif
+# endif
return __GCONV_INCOMPLETE_INPUT;
}
@@ -453,11 +451,11 @@ SINGLE(LOOPFCT) (struct __gconv_step *step,
result = __GCONV_OK;
/* Clear the state buffer. */
-#ifdef CLEAR_STATE
+# ifdef CLEAR_STATE
CLEAR_STATE;
-#else
+# else
state->__count &= ~7;
-#endif
+# endif
}
else if (result == __GCONV_INCOMPLETE_INPUT)
{
@@ -466,11 +464,11 @@ SINGLE(LOOPFCT) (struct __gconv_step *step,
assert (inend != &bytebuf[MAX_NEEDED_INPUT]);
*inptrp += inend - bytebuf - (state->__count & 7);
-#ifdef STORE_REST
+# ifdef STORE_REST
inptrp = &inptr;
STORE_REST
-#else
+# else
/* We don't have enough input for another complete input
character. */
assert (inend - inptr > (state->__count & ~7));
@@ -479,24 +477,25 @@ SINGLE(LOOPFCT) (struct __gconv_step *step,
inlen = 0;
while (inptr < inend)
state->__value.__wchb[inlen++] = *inptr++;
-#endif
+# endif
}
return result;
}
-# undef SINGLE
-# undef SINGLE2
-#endif
+# undef SINGLE
+# undef SINGLE2
+# endif
-#ifdef ONEBYTE_BODY
+# ifdef ONEBYTE_BODY
/* Define the shortcut function for btowc. */
static wint_t
gconv_btowc (struct __gconv_step *step, unsigned char c)
ONEBYTE_BODY
-# define FROM_ONEBYTE gconv_btowc
-#endif
+# define FROM_ONEBYTE gconv_btowc
+# endif
+#endif
/* We remove the macro definitions so that we can include this file again
for the definition of another function. */