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lib9: restore printing of signed integers 

A casualty of https://golang.org/cl/10195044.

If x is an 32-bit int and u is a 64-bit ulong,
        u = (uint)x // converts to uint before extension, so zero fills
        u = (ulong)x // sign-extends

TBR=iant, r
CC=golang-dev
https://golang.org/cl/10814043
This commit is contained in:
Russ Cox 2013-06-30 19:53:36 -04:00
parent c1fc8d5296
commit 0a4fc122de
1 changed files with 3 additions and 3 deletions
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6
src/lib9/fmt/dofmt.c
View File

@ -387,17 +387,17 @@ __ifmt(Fmt *f)
if(fl & FmtUnsigned)
u = (uchar)va_arg(f->args, int);
else
u = (uchar)(char)va_arg(f->args, int);
u = (ulong)(char)va_arg(f->args, int);
}else if(fl & FmtShort){
if(fl & FmtUnsigned)
u = (ushort)va_arg(f->args, int);
else
u = (ushort)(short)va_arg(f->args, int);
u = (ulong)(short)va_arg(f->args, int);
}else{
if(fl & FmtUnsigned)
u = va_arg(f->args, uint);
else
u = (uint)va_arg(f->args, int);
u = (ulong)va_arg(f->args, int);
}
conv = "0123456789abcdef";
grouping = "\4"; /* for hex, octal etc. (undefined by spec but nice) */