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Diffstat (limited to 'libc/stdio/old_vfprintf.c')
-rw-r--r--libc/stdio/old_vfprintf.c54
1 files changed, 48 insertions, 6 deletions
diff --git a/libc/stdio/old_vfprintf.c b/libc/stdio/old_vfprintf.c
index 77e593490..ecec63c9f 100644
--- a/libc/stdio/old_vfprintf.c
+++ b/libc/stdio/old_vfprintf.c
@@ -83,6 +83,9 @@
* 1) fix %p so that "0x" is prepended to outputed hex val
* 2) fix %p so that "(nil)" is output for (void *)0 to match glibc
*
+ * Sep 5, 2003
+ * Convert to new floating point conversion routine.
+ *
*/
/*****************************************************************************/
@@ -151,7 +154,45 @@
#endif
#if defined(__UCLIBC_HAS_FLOATS__)
-extern size_t _dtostr(FILE * fp, long double x, struct printf_info *info);
+#include <float.h>
+#include <bits/uClibc_fpmax.h>
+
+typedef void (__fp_outfunc_t)(FILE *fp, intptr_t type, intptr_t len,
+ intptr_t buf);
+
+extern size_t _fpmaxtostr(FILE * fp, __fpmax_t x, struct printf_info *info,
+ __fp_outfunc_t fp_outfunc);
+
+#define FMT_TYPE char
+#define OUTNSTR _outnstr
+#define _outnstr(stream, string, len) _stdio_fwrite(string, len, stream)
+
+static void _charpad(FILE * __restrict stream, int padchar, size_t numpad)
+{
+ /* TODO -- Use a buffer to cut down on function calls... */
+ FMT_TYPE pad[1];
+
+ *pad = padchar;
+ while (numpad) {
+ OUTNSTR(stream, pad, 1);
+ --numpad;
+ }
+}
+
+static void _fp_out_narrow(FILE *fp, intptr_t type, intptr_t len, intptr_t buf)
+{
+ if (type & 0x80) { /* Some type of padding needed. */
+ int buflen = strlen((const char *) buf);
+ if ((len -= buflen) > 0) {
+ _charpad(fp, (type & 0x7f), len);
+ }
+ len = buflen;
+ }
+ OUTNSTR(fp, (const char *) buf, len);
+}
+
+
+
#endif
@@ -384,11 +425,12 @@ int vfprintf(FILE * __restrict op, register const char * __restrict fmt,
if (flag[FLAG_MINUS_LJUSTIFY]) {
PRINT_INFO_SET_FLAG(&info,left);
}
- cnt += _dtostr(op,
- ((lval > 1)
- ? va_arg(ap, long double)
- : (long double) va_arg(ap, double)),
- &info);
+ cnt += _fpmaxtostr(op,
+ (__fpmax_t)
+ ((lval > 1)
+ ? va_arg(ap, long double)
+ : (long double) va_arg(ap, double)),
+ &info, _fp_out_narrow);
goto nextfmt;
#elif WANT_FLOAT_ERROR
(void) ((lval > 1) ? va_arg(ap, long double)