patch for issue #40 (Digit missing from negative numbers in certain cases)

1 files changed, 6 insertions, 8 deletions

diff --git a/printf.c b/printf.c
index c9a1175..7df2290 100644
--- a/printf.c
+++ b/printf.c
@@ -178,6 +178,9 @@ static size_t _ntoa_format(out_fct_type out, char* buffer, size_t idx, size_t ma
 

   // pad leading zeros

   if (!(flags & FLAGS_LEFT)) {

+    if (width && (flags & FLAGS_ZEROPAD) && (negative || (flags & (FLAGS_PLUS | FLAGS_SPACE)))) {

+      width--;

+    }

     while ((len < prec) && (len < PRINTF_NTOA_BUFFER_SIZE)) {

       buf[len++] = '0';

     }

@@ -208,10 +211,6 @@ static size_t _ntoa_format(out_fct_type out, char* buffer, size_t idx, size_t ma
     }

   }

 

-  // handle sign

-  if (len && (len == width) && (negative || (flags & FLAGS_PLUS) || (flags & FLAGS_SPACE))) {

-    len--;

-  }

   if (len < PRINTF_NTOA_BUFFER_SIZE) {

     if (negative) {

       buf[len++] = '-';

@@ -395,15 +394,14 @@ static size_t _ftoa(out_fct_type out, char* buffer, size_t idx, size_t maxlen, d
 

   // pad leading zeros

   if (!(flags & FLAGS_LEFT) && (flags & FLAGS_ZEROPAD)) {

+    if (width && (negative || (flags & (FLAGS_PLUS | FLAGS_SPACE)))) {

+      width--;

+    }

     while ((len < width) && (len < PRINTF_FTOA_BUFFER_SIZE)) {

       buf[len++] = '0';

     }

   }

 

-  // handle sign

-  if ((len == width) && (negative || (flags & FLAGS_PLUS) || (flags & FLAGS_SPACE))) {

-    len--;

-  }

   if (len < PRINTF_FTOA_BUFFER_SIZE) {

     if (negative) {

       buf[len++] = '-';