diff options
| -rw-r--r-- | src/preamble.js | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/preamble.js b/src/preamble.js index b471da92..a65ffdce 100644 --- a/src/preamble.js +++ b/src/preamble.js @@ -313,7 +313,11 @@ function String_len(ptr) { // Copies a C-style string, terminated by a zero, from the HEAP into // a normal JavaScript array of numbers function String_copy(ptr, addZero) { - return Array_copy(ptr, String_len(ptr)).concat(addZero ? [0] : []); + var len = String_len(ptr); + if (addZero) len++; + var ret = Array_copy(ptr, len); + if (addZero) ret[len-1] = 0; + return ret; } // Tools |