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-rw-r--r--Build/source/texk/ptexenc/ptexenc.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/Build/source/texk/ptexenc/ptexenc.c b/Build/source/texk/ptexenc/ptexenc.c
index 3fce9aaaa1b..23b9ea4f052 100644
--- a/Build/source/texk/ptexenc/ptexenc.c
+++ b/Build/source/texk/ptexenc/ptexenc.c
@@ -744,7 +744,7 @@ static boolean isUTF8Nstream(FILE *fp)
for (i=0; i<MARK_LEN; i++) {
c[i] = getc4(fp);
if (!(bom_l[i] <= c[i] && c[i] <= bom_u[i])) {
- do { ungetc4(c[i], fp); } while (--i>0);
+ do { ungetc4(c[i], fp); } while (i-- > 0);
return false;
}
}