PTAL

R=r
CC=golang-dev
http://codereview.appspot.com/254043

1 files changed, 54 insertions, 0 deletions

diff --git a/src/pkg/fmt/format.go b/src/pkg/fmt/format.go
index 88ef3504e..1567609cf 100644
--- a/src/pkg/fmt/format.go
+++ b/src/pkg/fmt/format.go
@@ -420,6 +420,60 @@ func (f *fmt) fmt_G32(v float32) { f.plusSpace(strconv.Ftoa32(v, 'G', doPrec(f,
 // fmt_fb32 formats a float32 in the form -123p3 (exponent is power of 2).
 func (f *fmt) fmt_fb32(v float32) { f.padString(strconv.Ftoa32(v, 'b', 0)) }
 
+// fmt_c64 formats a complex64 according to its fmt_x argument.
+// TODO pass in a method rather than a byte when the compilers mature.
+func (f *fmt) fmt_c64(v complex64, fmt_x byte) {
+	f.buf.WriteByte('(')
+	r := real(v)
+	for i := 0; ; i++ {
+		switch fmt_x {
+		case 'e':
+			f.fmt_e32(r)
+		case 'E':
+			f.fmt_E32(r)
+		case 'f':
+			f.fmt_f32(r)
+		case 'g':
+			f.fmt_g32(r)
+		case 'G':
+			f.fmt_G32(r)
+		}
+		if i != 0 {
+			break
+		}
+		f.plus = true
+		r = imag(v)
+	}
+	f.buf.Write(irparenBytes)
+}
+
+// fmt_c128 formats a complex128 according to its fmt_x argument.
+// TODO pass in a method rather than a byte when the compilers mature.
+func (f *fmt) fmt_c128(v complex128, fmt_x byte) {
+	f.buf.WriteByte('(')
+	r := real(v)
+	for i := 0; ; i++ {
+		switch fmt_x {
+		case 'e':
+			f.fmt_e64(r)
+		case 'E':
+			f.fmt_E64(r)
+		case 'f':
+			f.fmt_f64(r)
+		case 'g':
+			f.fmt_g64(r)
+		case 'G':
+			f.fmt_G64(r)
+		}
+		if i != 0 {
+			break
+		}
+		f.plus = true
+		r = imag(v)
+	}
+	f.buf.Write(irparenBytes)
+}
+
 // float
 func (x *fmt) f(a float) {
 	if strconv.FloatSize == 32 {