minor fixes for python demo

2 files changed, 16 insertions, 0 deletions

diff --git a/src/library.js b/src/library.js
index f894141e..0fb73611 100644
--- a/src/library.js
+++ b/src/library.js
@@ -315,6 +315,13 @@ var Library = {
     return 0;
   },
 
+  strstr: function(ptr1, ptr2) {
+    var str1 = Pointer_stringify(ptr1);
+    var str2 = Pointer_stringify(ptr2);
+    var ret = str1.search(str2);
+    return ret >= 0 ? ptr1 + ret : 0;
+  },
+
   strchr: function(ptr, chr) {
     ptr--;
     do {
diff --git a/src/preamble.js b/src/preamble.js
index 844c0bba..ef29bf82 100644
--- a/src/preamble.js
+++ b/src/preamble.js
@@ -367,6 +367,15 @@ function _llvm_memcpy_i32(dest, src, num, idunno) {
 }
 _memcpy = _llvm_memcpy_i64 = _llvm_memcpy_p0i8_p0i8_i32 = _llvm_memcpy_p0i8_p0i8_i64 = _llvm_memcpy_i32;
 
+function _llvm_memmove_i32(dest, src, num, idunno) {
+  // not optimized!
+  var tmp = _malloc(num);
+  _memcpy(tmp, src, num);
+  _memcpy(dest, tmp, num);
+  _free(tmp);
+}
+_memmove = _llvm_memmove_i64 = _llvm_memmove_p0i8_p0i8_i32 = _llvm_memmove_p0i8_p0i8_i64 = _llvm_memmove_i32;
+
 function llvm_memset_i32(ptr, value, num) {
   for (var i = 0; i < num; i++) {
 #if USE_TYPED_ARRAYS