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}
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}
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#define BUFSIZE 10000
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#define BUFSIZE 10000
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static int Wpipe_vfprintf(Rconnection con, const char *format, va_list ap)
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static int Wpipe_vfprintf(Rconnection con, const char *format, va_list ap)
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{
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{
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    R_CheckStack2(BUFSIZE);
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    char buf[BUFSIZE], *b = buf;
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    char buf[BUFSIZE], *b = buf;
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    int res = 0;
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    int res = 0;
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    res = vsnprintf(b, BUFSIZE, format, ap);
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    res = vsnprintf(b, BUFSIZE, format, ap);
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    if(res < 0) { /* a failure indication, so try again */
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    if(res < 0) { /* a failure indication, so try again */