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Improve *printf()

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- support %i in addition to %d
- print the sign when printing 0 with %+d
This commit is contained in:
Alexey Frunze
2016-01-24 18:38:58 -08:00
parent e1d3583dcd
commit b2bde490b4
1 changed files with 3 additions and 2 deletions
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5
src/libc/stdio/doprnt.c
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@@ -186,6 +186,7 @@ reswitch: switch (c = *fmt++) {
break; break;
case 'd': case 'd':
case 'i':
ul = lflag ? va_arg (ap, long) : va_arg (ap, int); ul = lflag ? va_arg (ap, long) : va_arg (ap, int);
if (! sign) sign = 1; if (! sign) sign = 1;
base = 10; base = 10;
@@ -211,7 +212,7 @@ reswitch: switch (c = *fmt++) {
sharpflag = (width == 0); sharpflag = (width == 0);
goto nosign; goto nosign;
case 'n': case 'n': /* TBD!!! fix this non-standard %n */
ul = lflag ? va_arg (ap, unsigned long) : ul = lflag ? va_arg (ap, unsigned long) :
sign ? (unsigned long) va_arg (ap, int) : sign ? (unsigned long) va_arg (ap, int) :
va_arg (ap, unsigned int); va_arg (ap, unsigned int);
@@ -294,7 +295,7 @@ cnt_unknown: if (ladjust)
goto number; goto number;
nosign: sign = 0; nosign: sign = 0;
number: if (sign && ((long) ul != 0L)) { number: if (sign) {
if ((long) ul < 0L) { if ((long) ul < 0L) {
neg = '-'; neg = '-';
ul = -(long) ul; ul = -(long) ul;