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-rw-r--r--src/lisp.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/lisp.h b/src/lisp.h
index 38e1891c894..1d25add9287 100644
--- a/src/lisp.h
+++ b/src/lisp.h
@@ -3684,6 +3684,8 @@ extern Lisp_Object string_make_unibyte (Lisp_Object);
extern void syms_of_fns (void);
/* Defined in floatfns.c. */
+verify (FLT_RADIX == 2 || FLT_RADIX == 16);
+enum { LOG2_FLT_RADIX = FLT_RADIX == 2 ? 1 : 4 };
int double_integer_scale (double);
#ifndef HAVE_TRUNC
extern double trunc (double);