diff options
| -rw-r--r-- | changes/bug22915 | 3 | ||||
| -rw-r--r-- | src/common/util.c | 16 |
2 files changed, 19 insertions, 0 deletions
diff --git a/changes/bug22915 b/changes/bug22915 new file mode 100644 index 0000000000..17a9c6018f --- /dev/null +++ b/changes/bug22915 @@ -0,0 +1,3 @@ + o Minor bugfixes (compilation warnings): + - Suppress -Wdouble-promotion warnings with clang 4.0. Fixes bug 22915; + bugfix on 0.2.8.1-alpha. diff --git a/src/common/util.c b/src/common/util.c index f53a99533b..5b47028097 100644 --- a/src/common/util.c +++ b/src/common/util.c @@ -5608,6 +5608,18 @@ clamp_double_to_int64(double number) #define PROBLEMATIC_FLOAT_CONVERSION_WARNING DISABLE_GCC_WARNING(float-conversion) #endif + +/* + With clang 4.0 we apparently run into "double promotion" warnings here, + since clang thinks we're promoting a double to a long double. + */ +#if defined(__clang__) +#if __has_warning("-Wdouble-promotion") +#define PROBLEMATIC_DOUBLE_PROMOTION_WARNING +DISABLE_GCC_WARNING(double-promotion) +#endif +#endif + /* NaN is a special case that can't be used with the logic below. */ if (isnan(number)) { return 0; @@ -5633,6 +5645,10 @@ DISABLE_GCC_WARNING(float-conversion) /* Handle infinities and finite numbers with magnitude >= 2^63. */ return signbit(number) ? INT64_MIN : INT64_MAX; + +#ifdef PROBLEMATIC_DOUBLE_PROMOTION_WARNING +ENABLE_GCC_WARNING(double-promotion) +#endif #ifdef PROBLEMATIC_FLOAT_CONVERSION_WARNING ENABLE_GCC_WARNING(float-conversion) #endif |