Document what the backtick returns if the command fails.

[p5sagit/p5-mst-13.2.git] / pod / perldelta.pod

diff --git a/pod/perldelta.pod b/pod/perldelta.pod
index 45b2f8e..9afa44d 100644 (file)
--- a/pod/perldelta.pod
+++ b/pod/perldelta.pod
@@ -27,37 +27,6 @@ to be the case and the 'cc' does not seem to be the GNU C compiler
 
 =head1 Platform specific changes
 
-=head2 printf() and sprintf() give two-digit exponent where possible
-
-Perl's printf() and sprintf() use the standard C library sprintf()
-function to implement the floating point conversions provided by the
-C<%e>, C<%f> and C<%g> formats (and their upper-case counterparts).  C
-library sprintf() functions vary in the number of exponent digits that
-they produce in scientific notation when the modulus of the exponent
-is less than one hundred: most platforms give two digits (for example,
-C<1.234e-45>) while others, notably Microsoft's libraries for Windows,
-give three (as in C<1.234e-045>).  Previously, Perl's functions
-produced results identical to the platform's underlying library
-function, resulting in script portability problems.  Now, on all
-platforms, only two exponent digits are delivered unless more are
-needed.
-
-Note that this change applies only to explicit conversions made by
-printf() and sprintf(); implicit conversions still show the same
-behavior as the underlying library function:
-
-    print "native: ", 1234567e89, sprintf("; standardized: %e\n", 1234567e89)
-
-outputs
-
-    native: 1.234567e+95; standardized: 1.234567e+95
-
-on most platforms, and
-
-    native: 1.234567e+095; standardized: 1.234567e+95
-
-on the remainder.
-
 =head1 Significant bug fixes
 
 =head1 New or Changed Diagnostics