From: Jonathan Nieder Date: Mon, 23 Apr 2012 16:15:36 GMT Subject: Re: [PATCH 02/10] Add three convenient format printing functions with \n automatically appended Message-ID: <20120423161536.GE4832@burratino> In-Reply-To: <1335184230-8870-3-git-send-email-pclouds@gmail.com> Nguyễn Thái Ngọc Duy wrote: > --- a/strbuf.c > +++ b/strbuf.c > @@ -464,3 +464,36 @@ void strbuf_addstr_urlencode(struct strbuf *sb, const char *s, [...] > +int printf_ln(const char *fmt, ...) > +{ > + int ret; > + va_list ap; > + va_start(ap, fmt); > + ret = vprintf(fmt, ap); > + va_end(ap); > + if (ret >= 0) > + ret += printf("\n"); Missed a spot. I'd do if (ret < 0 || putchar('\n') == EOF) return -1; return ret + 1; And likewise, for the fprintf version: if (ret < 0 || putc('\n', fp) == EOF) return -1; return ret + 1; Hope that helps, Jonathan