fmt_fp.c: exponential may be bigger than `100`.

a44ca2e9 · Yukihiro "Matz" Matsumoto · d121075e · a44ca2e9
Unverified Commit a44ca2e9 authored May 24, 2021 by Yukihiro "Matz" Matsumoto
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src/fmt_fp.c src/fmt_fp.c +4 -0

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--- a/src/fmt_fp.c
+++ b/src/fmt_fp.c
@@ -356,6 +356,10 @@ mrb_format_float(mrb_float f, char *buf, size_t buf_size, char fmt, int prec, ch
  if (e_sign) {
    *s++ = e_char;
    *s++ = e_sign;
+    if (e >= 100) {
+      *s++ = '0' + (e / 100);
+      e %= 100;
+    }
    *s++ = '0' + (e / 10);
    *s++ = '0' + (e % 10);
  }