import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

tools/jprof/strset.cpp

@@ -0,0 +1,40 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "strset.h"
+#include <malloc.h>
+#include <string.h>
+
+StrSet::StrSet()
+{
+    strings = 0;
+    numstrings = 0;
+}
+
+void StrSet::add(const char* s)
+{
+    if (strings) {
+	strings = (char**) realloc(strings, (numstrings + 1) * sizeof(char*));
+    } else {
+	strings = (char**) malloc(sizeof(char*));
+    }
+    strings[numstrings] = strdup(s);
+    numstrings++;
+}
+
+int StrSet::contains(const char* s)
+{
+    char** sp = strings;
+    int i = numstrings;
+
+    while (--i >= 0) {
+	char *ss = *sp++;
+	if (ss[0] == s[0]) {
+	    if (strcmp(ss, s) == 0) {
+		return 1;
+	    }
+	}
+    }
+    return 0;
+}