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-rw-r--r--Porting/Glossary5
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diff --git a/Porting/Glossary b/Porting/Glossary
index f289baa41c..8099ea2ae7 100644
--- a/Porting/Glossary
+++ b/Porting/Glossary
@@ -1118,6 +1118,11 @@ d_PRIi64 (quadfio.U):
This variable conditionally defines the PERL_PRIi64 symbol, which
indiciates that stdio has a symbol to print 64-bit decimal numbers.
+d_printf_exp_digits (d_printfed.U):
+ This symbol's value is either 2 or 3, corresponding to the
+ number of exponent digits produced by the system's sprintf %[FGfg]
+ formats when the modulus of the exponent is 99 or less.
+
d_PRIo64 (quadfio.U):
This variable conditionally defines the PERL_PRIo64 symbol, which
indiciates that stdio has a symbol to print 64-bit octal numbers.