diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/cmd/cgo/doc.go | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/cmd/cgo/doc.go b/src/cmd/cgo/doc.go index e6f9173aaf..e5d288167e 100644 --- a/src/cmd/cgo/doc.go +++ b/src/cmd/cgo/doc.go @@ -216,6 +216,13 @@ by making copies of the data. In pseudo-Go definitions: // C data with explicit length to Go []byte func C.GoBytes(unsafe.Pointer, C.int) []byte +As a special case, C.malloc does not call the C library malloc directly +but instead calls a Go helper function that wraps the C library malloc +but guarantees never to return nil. If C's malloc indicates out of memory, +the helper function crashes the program, like when Go itself runs out +of memory. Because C.malloc cannot fail, it has no two-result form +that returns errno. + C references to Go Go functions can be exported for use by C code in the following way: |