cc: correct handling of allocn(0, 1, d)

Fixes #29.

R=r
https://golang.org/cl/152076

diff --git a/src/cmd/cc/lex.c b/src/cmd/cc/lex.c
index b3216af44d6f9a6f50cc680633ebb55e443ad45a..ff80bfb324ad7a7968a470102f2b4ac0d11e6c7f 100644 (file)
--- a/src/cmd/cc/lex.c
+++ b/src/cmd/cc/lex.c
@@ -1566,9 +1566,8 @@ alloc(int32 n)
 void*
 allocn(void *p, int32 n, int32 d)
 {
-
        if(p == nil)
-               return alloc(d);
+               return alloc(n+d);
        p = realloc(p, n+d);
        if(p == nil) {
                print("allocn out of mem\n");