Improvements for num2str()

[fio.git] / fio.h

diff --git a/fio.h b/fio.h
index e8c025d6880e2d3613abf43578acf3efbbd8dab5..dfd8695779ef320480ade345c4e2db0f0970808a 100644 (file)
--- a/fio.h
+++ b/fio.h
@@ -661,7 +661,7 @@ static inline char *num2str(unsigned long num, int maxlen, int base, int pow2)
        char postfix[] = { ' ', 'K', 'M', 'G', 'P', 'E' };
        unsigned int thousand;
        char *buf;
-       int i;
+       int i, mod = 0;
 
        if (pow2)
                thousand = 1024;
@@ -679,6 +679,19 @@ static inline char *num2str(unsigned long num, int maxlen, int base, int pow2)
                len = sprintf(buf, "%'lu", num);
                if (len <= maxlen) {
                        if (i >= 1) {
+                               char dec[4];
+                               int j = 0;
+
+                               sprintf(dec, "%u", mod);
+                               if (maxlen - len >= 2) {
+                                       buf[len++] = '.';
+                                       while (maxlen - len) {
+                                               buf[len++] = dec[j++];
+                                               if (j == sizeof(dec) - 1)
+                                                       break;
+                                       }
+                               }
+
                                buf[len] = postfix[i];
                                buf[len + 1] = '\0';
                        }
@@ -688,6 +701,7 @@ static inline char *num2str(unsigned long num, int maxlen, int base, int pow2)
                if ((num % thousand) >= (thousand / 2))
                        carry = 1;
 
+               mod = num % thousand;
                num /= thousand;
                num += carry;
                i++;