in printf, use ferror macro rather than directly inspecting flags bit

this is purely aesthetic and should not affect code generation or
functionality.

diff --git a/src/stdio/vfprintf.c b/src/stdio/vfprintf.c
index 7b84808..a712d80 100644 (file)
--- a/src/stdio/vfprintf.c
+++ b/src/stdio/vfprintf.c
@@ -132,7 +132,7 @@ static void pop_arg(union arg *arg, int type, va_list *ap)
 
 static void out(FILE *f, const char *s, size_t l)
 {
-       if (!(f->flags & F_ERR)) __fwritex((void *)s, l, f);
+       if (!ferror(f)) __fwritex((void *)s, l, f);
 }
 
 static void pad(FILE *f, char c, int w, int l, int fl)
@@ -693,7 +693,7 @@ int vfprintf(FILE *restrict f, const char *restrict fmt, va_list ap)
                f->buf_size = 0;
                f->wpos = f->wbase = f->wend = 0;
        }
-       if (f->flags & F_ERR) ret = -1;
+       if (ferror(f)) ret = -1;
        f->flags |= olderr;
        FUNLOCK(f);
        va_end(ap2);