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| author | Rob Pike <r@golang.org> | 2015-01-15 10:43:04 +1100 |
|---|---|---|
| committer | Rob Pike <r@golang.org> | 2015-01-15 00:00:06 +0000 |
| commit | 3b63b69d2f16be676d4fdc4f4ac697ed92abf523 (patch) | |
| tree | 3ed146f6dcb159bddeb62fca4995c37d2b752eff /test/cmplxdivide.c | |
| parent | 636de7afb61d3afc354949fb6290afd9554dd5a5 (diff) | |
| download | go-3b63b69d2f16be676d4fdc4f4ac697ed92abf523.tar.gz go-3b63b69d2f16be676d4fdc4f4ac697ed92abf523.zip | |
test: comment the behavior and use of cmplxdivide*
The various files are confusingly named and their operation
not easy to see. Add a comment to cmplxdivide.c, one of the few
C files that will endure in the repository, to explain how to build
and run the test.
Change-Id: I1fd5c564a14217e1b9815b09bc24cc43c54c096f
Reviewed-on: https://go-review.googlesource.com/2850
Reviewed-by: Russ Cox <rsc@golang.org>
Diffstat (limited to 'test/cmplxdivide.c')
| -rw-r--r-- | test/cmplxdivide.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/test/cmplxdivide.c b/test/cmplxdivide.c index 12dc4f1c0c..d65436223c 100644 --- a/test/cmplxdivide.c +++ b/test/cmplxdivide.c @@ -2,7 +2,18 @@ // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. -// gcc '-std=c99' cmplxdivide.c && a.out >cmplxdivide1.go +// This C program generates the file cmplxdivide1.go. It uses the +// output of the operations by C99 as the reference to check +// the implementation of complex numbers in Go. +// The generated file, cmplxdivide1.go, is compiled along +// with the driver cmplxdivide.go (the names are confusing +// and unimaginative) to run the actual test. This is done by +// the usual test runner. +// +// The file cmplxdivide1.go is checked in to the repository, but +// if it needs to be regenerated, compile and run this C program +// like this: +// gcc '-std=c99' cmplxdivide.c && a.out >cmplxdivide1.go #include <complex.h> #include <math.h> |