msvcrt: Update round_limb on first limb length change in printf.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=51435Signed-off-by: Piotr Caban <piotr@codeweavers.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>

msvcrt: Update round_limb on first limb length change in printf.
2ffcf440 · Piotr Caban · Alexandre Julliard · 157a84a1 · 2ffcf440 · 2ffcf440
Commit 2ffcf440 authored Jul 10, 2021 by Piotr Caban Committed by Alexandre Julliard Jul 10, 2021
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printf.h dlls/msvcrt/printf.h +14 -0

printf.c dlls/ucrtbase/tests/printf.c +1 -0

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--- a/dlls/msvcrt/printf.h
+++ b/dlls/msvcrt/printf.h
@@ -704,11 +704,25 @@ static inline int FUNC_NAME(pf_output_fp)(FUNC_NAME(puts_clbk) pf_puts, void *pu
                if(i != first_limb_len) {
                    first_limb_len = i;
                    radix_pos++;
+
+                    round_pos++;
+                    if (round_pos == LIMB_DIGITS)
+                    {
+                        round_pos = 0;
+                        round_limb++;
+                    }
                }
            } else if(i == b->e) {
                first_limb_len = 1;
                radix_pos++;
                b->e++;
+
+                round_pos++;
+                if (round_pos == LIMB_DIGITS)
+                {
+                    round_pos = 0;
+                    round_limb++;
+                }
            }
        }
    }

--- a/dlls/ucrtbase/tests/printf.c
+++ b/dlls/ucrtbase/tests/printf.c
@@ -819,6 +819,7 @@ static void test_printf_fp(void)
        { "%.0f", 0.5, { "1", NULL, NULL, NULL, "0" }, {NULL, NULL, NULL, NULL, "1" }},
        { "%.0f", 1.5, { "2" }},
        { "%.0f", 2.5, { "3", NULL, NULL, NULL, "2" }, {NULL, NULL, NULL, NULL, "3" }},
+        { "%g", 9.999999999999999e-5, { "0.0001" }},
    };

    const char *res = NULL;