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correctly rounded floating-point conversions

Browse source 
in new package strconv.

move atoi etc to strconv too.

update fmt, etc to use strconv.

R=r
DELTA=2232  (1691 added, 424 deleted, 117 changed)
OCL=19286
CL=19380
This commit is contained in:
Russ Cox 2008-11-17 12:34:03 -08:00
parent f333f4685c
commit 079c00a475
24 changed files with 1819 additions and 530 deletions
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20
src/lib/reflect/tostring.go
View file

@ -9,7 +9,7 @@ package reflect
import (
"reflect";
"strings";
"strconv";
)
export func TypeToString(typ Type, expand bool) string
@ -81,7 +81,7 @@ func TypeToString(typ Type, expand bool) string {
if a.Open() {
str = "[]"
} else {
str = "[" + strings.ltoa(int64(a.Len())) + "]"
str = "[" + strconv.itoa64(int64(a.Len())) + "]"
}
return str + TypeToString(a.Elem(), false);
case MapKind:
@ -120,11 +120,7 @@ func TypeToString(typ Type, expand bool) string {
// TODO: want an unsigned one too
func integer(v int64) string {
return strings.ltoa(v);
}
func floatingpoint(v float64) string {
return strings.f64toa(v);
return strconv.itoa64(v);
}
func ValueToString(val Value) string {
@ -154,11 +150,15 @@ func ValueToString(val Value) string {
case Uint64Kind:
return integer(int64(val.(Uint64Value).Get()));
case FloatKind:
return floatingpoint(float64(val.(FloatValue).Get()));
if strconv.floatsize == 32 {
return strconv.ftoa32(float32(val.(FloatValue).Get()), 'g', -1);
} else {
return strconv.ftoa64(float64(val.(FloatValue).Get()), 'g', -1);
}
case Float32Kind:
return floatingpoint(float64(val.(Float32Value).Get()));
return strconv.ftoa32(val.(Float32Value).Get(), 'g', -1);
case Float64Kind:
return floatingpoint(float64(val.(Float64Value).Get()));
return strconv.ftoa64(val.(Float64Value).Get(), 'g', -1);
case Float80Kind:
return "float80";
case StringKind: