printf: fix printing +-prefixed numbers

Thanks to Cristian Ionescu-Idbohrn for noticing.

Also fix "%d" '  42' to skip leading whitespace.

function                                             old     new   delta
print_direc                                          435     454     +19
bb_strtoll                                            99     103      +4
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/0 up/down: 23/0)               Total: 23 bytes

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

1 files changed, 33 insertions, 0 deletions

diff --git a/testsuite/printf.tests b/testsuite/printf.tests
index 963ded94b..34a65926e 100755
--- a/testsuite/printf.tests
+++ b/testsuite/printf.tests
@@ -79,6 +79,39 @@ testing "printf understands %Ld" \
         "-5\n""0\n" \
         "" ""
 
+testing "printf handles positive numbers for %d" \
+        "${bb}printf '%d\n' 3 +3 '   3' '   +3' 2>&1; echo \$?" \
+        "3\n"\
+"3\n"\
+"3\n"\
+"3\n""0\n" \
+        "" ""
+
+testing "printf handles positive numbers for %i" \
+        "${bb}printf '%i\n' 3 +3 '   3' '   +3' 2>&1; echo \$?" \
+        "3\n"\
+"3\n"\
+"3\n"\
+"3\n""0\n" \
+        "" ""
+
+testing "printf handles positive numbers for %x" \
+        "${bb}printf '%x\n' 42 +42 '   42' '   +42' 2>&1; echo \$?" \
+        "2a\n"\
+"2a\n"\
+"2a\n"\
+"2a\n""0\n" \
+        "" ""
+
+testing "printf handles positive numbers for %f" \
+        "${bb}printf '%0.3f\n' .42 +.42 '   .42' '   +.42' 2>&1; echo \$?" \
+        "0.420\n"\
+"0.420\n"\
+"0.420\n"\
+"0.420\n""0\n" \
+        "" ""
+
+
 # "FIXED" now to act compatibly
 ## We are "more correct" here than bash/coreutils: they happily print -2
 ## as if it is a huge unsigned number