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680 Commits

Author SHA1 Message Date
Russ Cox
5600435fe4 produce diagnostic for 
import "fmt"
var fmt = 1

R=ken
OCL=33556
CL=33561
 2009-08-19 17:27:08 -07:00
Russ Cox
38df5ec58d try to do better line number reporting 
in the presence of yacc lookahead.
better but still not perfect

R=ken
OCL=33541
CL=33541
 2009-08-19 15:18:08 -07:00
Ian Lance Taylor
8aa9161e47 With the changes to support automatic forward declarations of 
type names, gccgo no longer reports redefinition errors for
:=, because it no longer knows at parse time whether the type
has changed.  Adjust this test to not match "redefinition",
and to instead match gccgo's current output.

declbad.go:19:3: error: variables redeclared but no variable is new
declbad.go:34:3: error: variables redeclared but no variable is new
declbad.go:39:3: error: variables redeclared but no variable is new
declbad.go:44:3: error: variables redeclared but no variable is new
declbad.go:49:3: error: variables redeclared but no variable is new
declbad.go:24:3: error: incompatible types in assignment
declbad.go:29:3: error: incompatible types in assignment
declbad.go:39:3: error: incompatible types in assignment

R=rsc
DELTA=10  (0 added, 0 deleted, 10 changed)
OCL=33537
CL=33539
 2009-08-19 14:40:48 -07:00
Russ Cox
63aeaa2a03 fix import dot bug 
R=ken
OCL=33526
CL=33528
 2009-08-19 11:32:46 -07:00
Ian Lance Taylor
42e9db134b Test that a type can refer to itself recursively as long as it 
does so in ways that permit its size to be known.

R=rsc
DELTA=35  (35 added, 0 deleted, 0 changed)
OCL=33427
CL=33433
 2009-08-17 19:23:17 -07:00
Ian Lance Taylor
f7e4fc9b1f Match gccgo error messages. 
bug165.go:13:6: error: invalid recursive type 'S'

This is a different line from the 6g error message, which is
"invalid map key type".  I accomodated both compilers by
merging the line.

bug188.go:13:2: error: unexpected reference to package

I made the error message less specific, which I think is fine
here.

R=rsc
DELTA=2  (0 added, 0 deleted, 2 changed)
OCL=33398
CL=33426
 2009-08-17 17:40:52 -07:00
Rob Pike
83c9d97abf fix a couple of scripts 
R=rsc
DELTA=6  (4 added, 2 deleted, 0 changed)
OCL=33400
CL=33400
 2009-08-17 14:16:25 -07:00
Rob Pike
74dd0ab670 fix up some irregular indentation 
R=rsc
OCL=33382
CL=33391
 2009-08-17 13:30:22 -07:00
Robert Griesemer
6f911ccaa5 6g bug: struct initializers must provide all field values unless the fields are named 
R=rsc,r
DELTA=16  (16 added, 0 deleted, 0 changed)
OCL=33292
CL=33303
 2009-08-14 15:13:32 -07:00
Ian Lance Taylor
91173b8930 Recognize gccgo error messages. 
bug039.go:6:7: error: redefinition of 'x'
bug039.go:5:1: note: previous definition of 'x' was here

bug049.go:6:9: error: incompatible types in binary expression

bug062.go:6:7: error: incompatible type in initialization

bug086.go:5:1: error: control reaches end of non-void function

bug103.go:8:2: error: variable has no type

bug121.go:9:2: error: expected signature or type name

bug131.go:7:7: error: incompatible type in initialization

bug165.go:10:8: error: expected complete type

bug171.go:5:1: error: control reaches end of non-void function
bug171.go:6:1: error: control reaches end of non-void function

bug172.go:7:6: error: expected integer type

bug182.go:7:2: error: if statement expects boolean expression

bug183.go:10:5: error: incompatible types in assignment
bug183.go:19:5: error: incompatible types in assignment

R=rsc
DELTA=15  (0 added, 0 deleted, 15 changed)
OCL=33168
CL=33175
 2009-08-13 09:42:28 -07:00
Russ Cox
3e98a40793 bug188 - sort(x) 
R=ken
OCL=33123
CL=33123
 2009-08-12 15:58:31 -07:00
Russ Cox
66beb2fd3b fix bug187 not to crash 
TBR=austin
DELTA=9  (4 added, 4 deleted, 1 changed)
OCL=33115
CL=33115
 2009-08-12 14:54:15 -07:00
Russ Cox
b5c57fea96 delete forward type declarations 
R=r
DELTA=163  (1 added, 149 deleted, 13 changed)
OCL=33106
CL=33111
 2009-08-12 14:40:47 -07:00
Austin Clements
f60203666b Bug involving ... initializers and interface values. 
R=rsc
APPROVED=rsc
DELTA=22  (22 added, 0 deleted, 0 changed)
OCL=33053
CL=33104
 2009-08-12 13:57:05 -07:00
Russ Cox
5b62b19d43 convert non-pkg go files to whole-package compilation. 
mostly removing forward declarations.

R=r
DELTA=138  (2 added, 127 deleted, 9 changed)
OCL=33068
CL=33099
 2009-08-12 13:18:54 -07:00
Russ Cox
866b272336 bug186 - f(iota) 
R=ken
OCL=33051
CL=33051
 2009-08-11 17:05:22 -07:00
Robert Griesemer
0dbd8971a2 - use in-place bignum operations where available 
- runs approx. 30% faster

R=r
DELTA=24  (10 added, 2 deleted, 12 changed)
OCL=32984
CL=33005
 2009-08-10 17:44:46 -07:00
Rob Pike
ea8197cb45 new timing data after compiler updates (fp regs, integer div and mod) 
R=rsc
DELTA=90  (90 added, 0 deleted, 0 changed)
OCL=32993
CL=33001
 2009-08-10 17:04:59 -07:00
Russ Cox
3f91f80a21 8-bit div and mod 
R=ken
OCL=32975
CL=32975
 2009-08-10 12:46:23 -07:00
David Symonds
b65a5225f6 Partially fix build: don't assume . is in PATH. 
APPROVED=rsc
DELTA=1  (1 added, 0 deleted, 0 changed)
OCL=32948
CL=32948
 2009-08-09 19:18:40 -07:00
Rob Pike
266a2c47e0 run benchmarks in a relatively fast test mode, as part of run.bash/all.bash 
R=rsc
DELTA=293  (224 added, 0 deleted, 69 changed)
OCL=32917
CL=32944
 2009-08-09 14:31:05 -07:00
Ken Thompson
812f06b3ca another plateau - almost done 
only need to fix up certain
denominators

R=rsc
OCL=32928
CL=32928
 2009-08-08 16:53:21 -07:00
Russ Cox
6be0f50b97 bug159 
R=ken
OCL=32902
CL=32914
 2009-08-07 16:47:54 -07:00
Rob Pike
c12ccabb9c chameneos 
R=rsc
DELTA=514  (513 added, 0 deleted, 1 changed)
OCL=32898
CL=32910
 2009-08-07 15:28:46 -07:00
Russ Cox
39b12e2dcb bug185 - return b,a from func() (a,b int) 
R=ken
OCL=32900
CL=32900
 2009-08-07 14:38:31 -07:00
Russ Cox
0ab8dbef76 annotations 
TBR=r
OCL=32896
CL=32896
 2009-08-07 14:18:30 -07:00
Russ Cox
d1ee5d6e8f bug184 - assignment compatibility in unpacked multireturn 
R=ken
OCL=32890
CL=32894
 2009-08-07 14:00:18 -07:00
Rob Pike
5005fb46a2 simplify threadring slightly; slight speed improvement 
R=rsc
DELTA=7  (3 added, 3 deleted, 1 changed)
OCL=32885
CL=32889
 2009-08-07 13:30:20 -07:00
Russ Cox
aa7bd48389 bug183 - embedded vs non-embedded struct field in eqtype 
R=ken
OCL=32888
CL=32888
 2009-08-07 13:23:09 -07:00
Russ Cox
468f244416 bug182 - compiler crash 
R=ken
OCL=32887
CL=32887
 2009-08-07 13:17:28 -07:00
Russ Cox
6c2738eb43 bug181 - type T *struct { T } is an invalid embedded type 
R=ken
OCL=32886
CL=32886
 2009-08-07 13:14:01 -07:00
Russ Cox
99eca57d43 clean up a few error messages; 
disable func redeclaration mismatch test;
fix golden.out

R=ken
OCL=32883
CL=32883
 2009-08-07 13:00:20 -07:00
Rob Pike
c30d81bd23 threadring 
more interesting than most

R=rsc
DELTA=132  (131 added, 0 deleted, 1 changed)
OCL=32876
CL=32881
 2009-08-07 12:53:51 -07:00
Rob Pike
e98dde27ef timing updates after 6g change for efficient division by powers of two 
R=rsc
DELTA=25  (23 added, 0 deleted, 2 changed)
OCL=32873
CL=32875
 2009-08-07 10:39:45 -07:00
Ken Thompson
f1baf78247 divide by a constant power of 2 
R=rsc
OCL=32858
CL=32858
 2009-08-06 22:33:12 -07:00
Rob Pike
2f9c48f6d1 timings for pidigits 
TBR=rsc
OCL=32857
CL=32857
 2009-08-06 18:27:15 -07:00
Robert Griesemer
081bc69cde - initial version of pidigits.go benchmark 
- extra bignum.go functionality for pidigits.go
- tuned bignum multiplication

R=r
DELTA=193  (186 added, 0 deleted, 7 changed)
OCL=32852
CL=32856
 2009-08-06 18:16:51 -07:00
Rob Pike
7655588438 meteor-contest 
R=rsc
DELTA=1276  (1275 added, 0 deleted, 1 changed)
OCL=32851
CL=32854
 2009-08-06 18:04:48 -07:00
Rob Pike
c68398617b mandelbrot 
R=rsc
DELTA=147  (145 added, 0 deleted, 2 changed)
OCL=32840
CL=32845
 2009-08-06 14:21:21 -07:00
Rob Pike
7955490de2 add runtime.GOMAXPROCS, allowing a program to, in effect, set $GOMAXPROCS 
R=rsc
DELTA=29  (28 added, 1 deleted, 0 changed)
OCL=32829
CL=32837
 2009-08-06 13:07:05 -07:00
Rob Pike
ae3939cb78 k-nucleotide 
R=rsc
DELTA=367  (366 added, 0 deleted, 1 changed)
OCL=32832
CL=32836
 2009-08-06 13:00:26 -07:00
Rob Pike
158f3f6440 parallel spectral-norm 
R=rsc
DELTA=85  (84 added, 1 deleted, 0 changed)
OCL=32810
CL=32810
 2009-08-05 18:44:49 -07:00
Rob Pike
8764ebee95 spectral-norm 
make regexp-dna use bytes not strings (no significant timing change)

R=rsc
DELTA=149  (138 added, 1 deleted, 10 changed)
OCL=32804
CL=32807
 2009-08-05 17:25:38 -07:00
Rob Pike
d9a0bc9b58 regex-dna 
R=rsc
DELTA=243  (242 added, 0 deleted, 1 changed)
OCL=32786
CL=32791
 2009-08-05 13:03:46 -07:00
Rob Pike
6b7bf38487 fannkuch 
R=rsc
DELTA=240  (239 added, 0 deleted, 1 changed)
OCL=32783
CL=32785
 2009-08-05 11:33:59 -07:00
Russ Cox
54b403723b delay := processing 
R=ken
OCL=32772
CL=32772
 2009-08-05 00:42:44 -07:00
Rob Pike
3a23e53387 binary tree 
R=rsc
DELTA=324  (323 added, 0 deleted, 1 changed)
OCL=32759
CL=32768
 2009-08-04 19:38:08 -07:00
Russ Cox
4dec8ef35a get function calls out of the way before 
allocating registers in shift and div.

fix behavior when res == a reserved register.

R=ken
OCL=32765
CL=32767
 2009-08-04 19:16:57 -07:00
Rob Pike
abaf604648 add info about Sqrt instruction 
couple of fixes to timing.sh

R=rsc
DELTA=10  (5 added, 0 deleted, 5 changed)
OCL=32742
CL=32756
 2009-08-04 17:31:19 -07:00
Russ Cox
dbe004efe4 delayed evaluation of var blocks 
R=ken
OCL=32750
CL=32753
 2009-08-04 16:53:06 -07:00
Rob Pike
5b1fb14371 nbody benchmark 
timing.sh improvements

R=rsc
DELTA=334  (319 added, 0 deleted, 15 changed)
OCL=32734
CL=32736
 2009-08-04 14:27:46 -07:00
Rob Pike
0444da91c0 improve myrandom() in fasta. 
add script to automate timing

R=rsc
DELTA=78  (68 added, 0 deleted, 10 changed)
OCL=32729
CL=32732
 2009-08-04 14:07:17 -07:00
Rob Pike
9ae42ee87f another benchmark: reverse-complement 
R=rsc
DELTA=682  (511 added, 171 deleted, 0 changed)
OCL=32725
CL=32727
 2009-08-04 13:04:37 -07:00
Rob Pike
417683c3d3 clean up the code a bit 
start a log of progress

R=rsc
DELTA=222  (185 added, 17 deleted, 20 changed)
OCL=32701
CL=32718
 2009-08-04 10:13:58 -07:00
Rob Pike
9155bb3345 benchmark checkpoint milestone checkin submission 
R=rsc
DELTA=311  (311 added, 0 deleted, 0 changed)
OCL=32696
CL=32699
 2009-08-03 21:03:58 -07:00
Russ Cox
9dc22b6d6f more 6g reorg; checkpoint. 
typecheck.c is now responsible for all type checking
except for assignment and function argument "..."

R=ken
OCL=32661
CL=32667
 2009-08-03 11:58:52 -07:00
Russ Cox
b754b4348f delete some code from walkexpr that is now 
handled by typecheck.

second switch is gone

move floating point minus into back end

R=ken
OCL=32558
CL=32558
 2009-07-30 18:56:44 -07:00
Russ Cox
34b277f046 use errchk in more places. 
let errchk exit 0 even if it has reported a BUG.
it echoed BUG and that's all that matters.

R=r
DELTA=143  (1 added, 89 deleted, 53 changed)
OCL=32533
CL=32542
 2009-07-30 16:46:14 -07:00
Russ Cox
bbeb2276de fixed golden.out, which is what 32496 should have done. 
roll back 32496

TBR=austin
OCL=32499
CL=32501
 2009-07-29 18:33:31 -07:00
Russ Cox
3a23da657d fix build 
TBR=austin
OCL=32496
CL=32496
 2009-07-29 18:18:12 -07:00
Russ Cox
c217c16a06 bug136 unfixed 
R=austin
DELTA=35  (21 added, 14 deleted, 0 changed)
OCL=32469
CL=32474
 2009-07-29 15:39:05 -07:00
Russ Cox
3314f8c8e3 another test error tweak 
5 known bugs; 0 unexpected bugs; test output differs

R=r
DELTA=3  (2 added, 0 deleted, 1 changed)
OCL=32468
CL=32470
 2009-07-29 15:30:54 -07:00
Russ Cox
1ff5897d64 tweak final line of test output: 
4 known bugs; 0 unexpected bugs

which should be less scary to people
unfamiliar with the tests.

R=r
DELTA=44  (29 added, 12 deleted, 3 changed)
OCL=32460
CL=32464
 2009-07-29 15:11:19 -07:00
Russ Cox
2946069e3f break and continue fixes 
labeled break/continue was using
first loop with any label,
not first loop with the right label.

R=ken
OCL=32453
CL=32458
 2009-07-29 14:49:01 -07:00
Russ Cox
9271c6402e introduce typecheck pass before walkexpr. 
not complete but compiler still works.

R=ken
OCL=32424
CL=32426
 2009-07-29 12:47:51 -07:00
Russ Cox
9346c6d901 make every func literal expression allocate, 
so that == on func means that the
functions originated in the same
execution of a func literal or definition.

before, there was an inconsistency:

	func() {x++} != func() {x++}

but

	func() {} == func() {}

this CL makes the second case != too,
just like

	make(map[int]int) != make(map[int]int)

R=r
DELTA=202  (71 added, 62 deleted, 69 changed)
OCL=32393
CL=32398
 2009-07-28 20:01:00 -07:00
Russ Cox
123ff2ebb8 bug177: anonymous struct fields in reflect 
(reported by iant)

R=r
DELTA=50  (32 added, 12 deleted, 6 changed)
OCL=32263
CL=32385
 2009-07-28 17:01:46 -07:00
Phil Pennock
d6f89c69c4 Support use of $GOBINDIR to override $HOME/bin 
R=r,gri,rsc
APPROVED=rsc
DELTA=53  (12 added, 6 deleted, 35 changed)
OCL=31822
CL=32282
 2009-07-28 11:23:24 -07:00
Russ Cox
18840f5429 constant keys for array initializers 
R=ken
OCL=32261
CL=32261
 2009-07-27 17:58:25 -07:00
Russ Cox
eece85c9a7 move bug148, already fixed, to fixedbugs 
R=ken
OCL=32257
CL=32257
 2009-07-27 17:32:02 -07:00
Russ Cox
b7dd312c93 bug170; fix test for bug175 
R=ken
OCL=32255
CL=32255
 2009-07-27 17:24:07 -07:00
Russ Cox
a587d9a73f multiple return in := bug 
R=ken
OCL=32253
CL=32253
 2009-07-27 16:59:10 -07:00
Russ Cox
059bbdd340 print(1<<x) 
R=ken
OCL=32252
CL=32252
 2009-07-27 16:17:09 -07:00
Russ Cox
811e59f2fa named string type bugs 
R=ken
OCL=32244
CL=32244
 2009-07-27 15:16:28 -07:00
Russ Cox
03b25a92a3 catch 
a := true;
	a |= a;
in the front end.

R=ken
OCL=32240
CL=32243
 2009-07-27 14:55:14 -07:00
Russ Cox
0b2683d1ee do not insert implicit "return;" in empty function body 
R=ken
OCL=32239
CL=32239
 2009-07-27 14:36:32 -07:00
Russ Cox
dbba489951 do not echo command in errchk, 
so that golden.out does not include
the name of the compiler (which is
arch-specific and shows up in diffs).

R=r,iant
DELTA=3  (0 added, 0 deleted, 3 changed)
OCL=31980
CL=31983
 2009-07-21 19:45:06 -07:00
Russ Cox
052a66babd runtime: fix init scheduling bug. 
if there is a goroutine waiting to run
and the init goroutine enters a system call,
entersyscall was trying to kick off a new
scheduler for the other goroutine, causing
a panic (new goroutines can't run until main.main).

R=r
DELTA=32  (32 added, 0 deleted, 0 changed)
OCL=31982
CL=31982
 2009-07-21 19:43:27 -07:00
Ian Lance Taylor
c9399f13f8 You can't set a fixed array to nil. 
R=r
DELTA=12  (12 added, 0 deleted, 0 changed)
OCL=31915
CL=31936
 2009-07-21 14:05:21 -07:00
Russ Cox
940e381b75 triple quote 
R=ken
OCL=31868
CL=31874
 2009-07-20 14:15:36 -07:00
Ian Lance Taylor
3321470488 Recognize gccgo error message. 
explicit.go:21:5: error: incompatible types in assignment (need explicit conversion)
   explicit.go:26:5: error: incompatible types in assignment (type has no methods)
   explicit.go:27:5: error: incompatible types in assignment (need explicit conversion)
   explicit.go:30:6: error: incompatible types in assignment (need explicit conversion; missing method ‘N’)
   explicit.go:33:7: error: invalid type conversion (need explicit conversion; missing method ‘N’)
   explicit.go:36:5: error: incompatible types in assignment

R=rsc
DELTA=1  (0 added, 0 deleted, 1 changed)
OCL=31805
CL=31807
 2009-07-17 16:12:29 -07:00
Russ Cox
db508ccbff baby step: const decls can refer to future 
consts in the same factored block

	const (
		X = Y;
		Y = 2;
	)

R=ken
OCL=31782
CL=31782
 2009-07-17 13:38:16 -07:00
Russ Cox
e52e9ca82e another step toward eliminating forward declarations. 
introduce NodeList* type in compiler to replace OLIST.
this clarifies where lists can and cannot occur.
list append and concatenation are now cheap.
the _r rules are gone from yacc.
rev and unrev are gone.
no more lists of lists.

the representation of assignments is a bit clunkier.
split into OAS (1=1) and OAS2 (2 or more on one side).

delete dead chanrecv3 code.

delay construction of func types.

R=ken
OCL=31745
CL=31762
 2009-07-17 01:00:44 -07:00
Russ Cox
be16caf872 step toward no function prototypes. 
delay evaluation of most types (all but func)
from parse time to type check time.

R=ken
OCL=31585
CL=31585
 2009-07-13 23:38:39 -07:00
Russ Cox
e11447f7da bug148. 
R=ken
OCL=31582
CL=31582
 2009-07-13 23:29:44 -07:00
Russ Cox
7472f4c951 bug168 (dsymonds) + fix 
R=ken
OCL=31399
CL=31399
 2009-07-09 12:08:50 -07:00
Russ Cox
a1b64821f8 bug167 
R=ken
OCL=31295
CL=31295
 2009-07-07 11:48:22 -07:00
Russ Cox
80e4a053d7 update tests for new reflect 
R=r
DELTA=12  (0 added, 0 deleted, 12 changed)
OCL=31240
CL=31290
 2009-07-07 11:04:51 -07:00
Robert Griesemer
985390bc52 bug167: types declared in different scopes should 
be independent of each other

R=rsc
DELTA=28  (28 added, 0 deleted, 0 changed)
OCL=31271
CL=31273
 2009-07-07 10:42:42 -07:00
Robert Griesemer
f401cb3e75 fix test 
R=rsc
DELTA=2  (0 added, 0 deleted, 2 changed)
OCL=31270
CL=31272
 2009-07-07 10:30:31 -07:00
Russ Cox
d436a70193 allow conversion to interface type 
when implicit assignment would have been okay.

R=ken
OCL=31225
CL=31227
 2009-07-06 17:20:48 -07:00
Russ Cox
8a1bfe89b2 change bug163 to use actual non-letter in identifier 
R=r,iant
DELTA=1  (0 added, 0 deleted, 1 changed)
OCL=31146
CL=31148
 2009-07-03 13:33:00 -07:00
Russ Cox
1af3edc37f maps have == so maps should work as map keys. 
fix tests of bad map keys to use slices instead.

R=r
DELTA=7  (0 added, 1 deleted, 6 changed)
OCL=31123
CL=31145
 2009-07-03 09:45:15 -07:00
Ian Lance Taylor
7ae0c67825 Recognize gccgo error message. 
bug022.go:8:13: error: attempt to index object which is not array, string, or map

R=rsc
DELTA=1  (0 added, 0 deleted, 1 changed)
OCL=31082
CL=31089
 2009-07-02 15:55:17 -07:00
Ian Lance Taylor
f1428b2910 Recognize gccgo error messages. 
(Amusing side note: the GNU coding standards say: Please do
not use the term "illegal" to refer to erroneous input to a
computer program.  Please use "invalid" for this, and reserve
the term "illegal" for activities prohibited by law.)

indirect1.go:35:3: error: argument must be string or array or slice or map
indirect1.go:36:3: error: argument must be string or array or slice or map
indirect1.go:38:3: error: argument must be string or array or slice or map
indirect1.go:41:3: error: argument must be string or array or slice or map
indirect1.go:42:3: error: argument must be string or array or slice or map
indirect1.go:44:3: error: argument must be string or array or slice or map
indirect1.go:55:3: error: argument must be string or array or slice or map
indirect1.go:56:3: error: argument must be string or array or slice or map
indirect1.go:58:3: error: argument must be string or array or slice or map
indirect1.go:61:3: error: argument must be array or slice
indirect1.go:62:3: error: argument must be array or slice
indirect1.go:64:3: error: argument must be array or slice

R=rsc
DELTA=12  (0 added, 0 deleted, 12 changed)
OCL=31081
CL=31088
 2009-07-02 15:54:57 -07:00
Russ Cox
5d5904bb4d bug163 bug164 bug166 
R=ken
OCL=30889
CL=30889
 2009-06-29 17:46:22 -07:00
Russ Cox
df36629d76 bug041 not a bug. 
can now forward declare across files

R=r
DELTA=15  (0 added, 15 deleted, 0 changed)
OCL=30873
CL=30880
 2009-06-29 17:21:33 -07:00
Russ Cox
3119221ed8 bogus test: planning to allow forward declarations 
of structs/interfaces in other files in the package.

R=r
DELTA=12  (0 added, 12 deleted, 0 changed)
OCL=30865
CL=30868
 2009-06-29 15:13:18 -07:00
Ian Lance Taylor
6a71f43f82 6g appears to permit semicolons to be omitted after qualified 
identifiers.  This is not one of the exceptions permitted by
th spec.

R=ken,rsc
DELTA=11  (11 added, 0 deleted, 0 changed)
OCL=30844
CL=30852
 2009-06-29 12:52:08 -07:00
Rob Pike
d330c712c1 Getenv: almost no one wants the error, so make it return a string that may be empty. 
Getenverror is the new name for the old routine that returns an error too.

R=rsc
DELTA=35  (7 added, 7 deleted, 21 changed)
OCL=30818
CL=30821
 2009-06-26 20:28:41 -07:00