[tor-commits] [tor/maint-0.2.9] Merge branch 'bug22801_028' into maint-0.2.9

[nickm@xxxxxxxxxxxxxx]

commit bb97f680e74170673246b3de32e847ade46840f2
Merge: ec9c6d7 5361032
Author: Nick Mathewson <nickm@xxxxxxxxxxxxxx>
Date:   Wed Jul 5 11:18:59 2017 -0400

    Merge branch 'bug22801_028' into maint-0.2.9

 changes/bug22801  |  5 +++++
 src/common/util.c | 12 ++++++++++++
 2 files changed, 17 insertions(+)

diff --cc src/common/util.c
index a7bce2e,b2b9761..b7468df
--- a/src/common/util.c
+++ b/src/common/util.c
@@@ -5693,8 -5535,17 +5693,17 @@@ tor_weak_random_range(tor_weak_rng_t *r
  int64_t
  clamp_double_to_int64(double number)
  {
 -  int exp;
 +  int exponent;
  
+ #if defined(__MINGW32__) || defined(__MINGW64__)
+ /*
+   Mingw's math.h uses gcc's __builtin_choose_expr() facility to declare
+   isnan, isfinite, and signbit.  But as implemented in at least some
+   versions of gcc, __builtin_choose_expr() can generate type warnings
+   even from branches that are not taken.  So, suppress those warnings.
+ */
+ DISABLE_GCC_WARNING(float-conversion)
+ #endif
    /* NaN is a special case that can't be used with the logic below. */
    if (isnan(number)) {
      return 0;
@@@ -5720,26 -5571,8 +5729,29 @@@
  
    /* Handle infinities and finite numbers with magnitude >= 2^63. */
    return signbit(number) ? INT64_MIN : INT64_MAX;
+ #if defined(__MINGW32__) || defined(__MINGW64__)
+ ENABLE_GCC_WARNING(float-conversion)
+ #endif
  }
  
 +/** Return a uint64_t value from <b>a</b> in network byte order. */
 +uint64_t
 +tor_htonll(uint64_t a)
 +{
 +#ifdef WORDS_BIGENDIAN
 +  /* Big endian. */
 +  return a;
 +#else /* WORDS_BIGENDIAN */
 +  /* Little endian. The worst... */
 +  return htonl((uint32_t)(a>>32)) |
 +    (((uint64_t)htonl((uint32_t)a))<<32);
 +#endif /* WORDS_BIGENDIAN */
 +}
 +
 +/** Return a uint64_t value from <b>a</b> in host byte order. */
 +uint64_t
 +tor_ntohll(uint64_t a)
 +{
 +  return tor_htonll(a);
 +}
 +

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