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diff -U5 -r a/src/tfio.c b/src/tfio.c
--- a/src/tfio.c 2007-01-13 18:12:39.000000000 -0500
+++ b/src/tfio.c 2007-02-02 16:50:12.000000000 -0500
@@ -495,10 +495,11 @@
const char *q, *sval;
char *specptr, quote;
const conString *Sval;
int len, min, max, leftjust, stars;
attr_t attrs = buf->attrs;
+ va_list aq;
if (!(flags & SP_APPEND) && buf->data) Stringtrunc(buf, 0);
while (*fmt) {
if (*fmt != '%' || *++fmt == '%') {
for (q = fmt + 1; *q && *q != '%'; q++);
@@ -520,11 +521,13 @@
switch (*fmt) {
case 'd': case 'i':
case 'x': case 'X': case 'u': case 'o':
case 'f': case 'e': case 'E': case 'g': case 'G':
case 'p':
- vsprintf(tempbuf, spec, ap);
+ va_copy(aq, ap);
+ vsprintf(tempbuf, spec, aq);
+ va_end(aq);
Stringcat(buf, tempbuf);
/* eat the arguments used by vsprintf() */
while (stars--) (void)va_arg(ap, int);
switch (*fmt) {
case 'd': case 'i':
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