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-rw-r--r--include/fenv.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/include/fenv.h b/include/fenv.h
index ed6d1394ba..9f90d17090 100644
--- a/include/fenv.h
+++ b/include/fenv.h
@@ -1,5 +1,6 @@
#ifndef _FENV_H
#include <math/fenv.h>
+#include <stdbool.h>
#ifndef _ISOMAC
/* Now define the internal interfaces. */
@@ -23,4 +24,13 @@ libm_hidden_proto (fetestexcept)
libm_hidden_proto (feclearexcept)
#endif
+/* Rounding mode context. This allows functions to set/restore rounding mode
+ only when the desired rounding mode is different from the current rounding
+ mode. */
+struct rm_ctx
+{
+ fenv_t env;
+ bool updated_status;
+};
+
#endif