A comprehensive single test case for testing char strings

git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk@6168 626c5289-ae23-0410-ae9c-e8d60b6d4f22

SWIG/Examples/test-suite/char_strings.i

@@ -0,0 +1,115 @@
+/*
+A test case for testing char based strings. Useful for runtime testing,
+there were some runtime crashes and leaks in the C# module in some of the scenarios
+below.
+*/
+
+%module char_strings
+
+%warnfilter(462) global_char_array1;  // Unable to set variable of type char[]
+
+%{
+#define OTHERLAND_MSG "Little message from the the safe world."
+#define CPLUSPLUS_MSG "A message from the deep dark world of C++, where anything is possible."
+static char *global_str = NULL;
+const int UINT_DIGITS = 10; // max unsigned int is 4294967295
+
+bool check(const char *str, unsigned int number) {
+  static char expected[256];
+  sprintf(expected, "%s%d", OTHERLAND_MSG, number);
+  bool matches = (strcmp(str, expected) == 0);
+  if (!matches) printf("Failed: [%s][%s]\n", str, expected);
+  return matches;
+}
+
+%}
+
+%immutable global_const_char;
+
+%inline %{
+// get functions
+char *GetCharHeapString() {
+  global_str = new char[sizeof(CPLUSPLUS_MSG)+1];
+  strcpy(global_str, CPLUSPLUS_MSG);
+  return global_str;
+}
+
+const char *GetConstCharProgramCodeString() {
+  return CPLUSPLUS_MSG;
+}
+
+void DeleteCharHeapString() {
+  delete[] global_str;
+  global_str = NULL;
+}
+
+char *GetCharStaticString() {
+  static char str[sizeof(CPLUSPLUS_MSG)+1];
+  strcpy(str, CPLUSPLUS_MSG);
+  return str;
+}
+
+char *GetCharStaticStringFixed() {
+  static char str[] = CPLUSPLUS_MSG;
+  return str;
+}
+
+const char *GetConstCharStaticStringFixed() {
+  static const char str[] = CPLUSPLUS_MSG;
+  return str;
+}
+
+// set functions
+bool SetCharHeapString(char *str, unsigned int number) {
+  delete[] global_str;
+  global_str = new char[strlen(str)+UINT_DIGITS+1];
+  strcpy(global_str, str);
+  return check(global_str, number);
+}
+
+bool SetCharStaticString(char *str, unsigned int number) {
+  static char static_str[] = CPLUSPLUS_MSG;
+  strcpy(static_str, str);
+  return check(static_str, number);
+}
+
+bool SetCharArrayStaticString(char str[], unsigned int number) {
+  static char static_str[] = CPLUSPLUS_MSG;
+  strcpy(static_str, str);
+  return check(static_str, number);
+}
+
+bool SetConstCharHeapString(const char *str, unsigned int number) {
+  delete[] global_str;
+  global_str = new char[strlen(str)+UINT_DIGITS+1];
+  strcpy(global_str, str);
+  return check(global_str, number);
+}
+
+bool SetConstCharStaticString(const char *str, unsigned int number) {
+  static char static_str[] = CPLUSPLUS_MSG;
+  strcpy(static_str, str);
+  return check(static_str, number);
+}
+
+bool SetConstCharArrayStaticString(const char str[], unsigned int number) {
+  static char static_str[] = CPLUSPLUS_MSG;
+  strcpy(static_str, str);
+  return check(static_str, number);
+}
+
+// get set function
+char *CharPingPong(char *str) {
+  return str;
+}
+
+// variables
+char *global_char = CPLUSPLUS_MSG;
+char global_char_array1[] = CPLUSPLUS_MSG;
+char global_char_array2[sizeof(CPLUSPLUS_MSG)+1] = CPLUSPLUS_MSG;
+
+const char *global_const_char = CPLUSPLUS_MSG;
+const char global_const_char_array1[] = CPLUSPLUS_MSG;
+const char global_const_char_array2[sizeof(CPLUSPLUS_MSG)+1] = CPLUSPLUS_MSG;
+
+%}

SWIG/Examples/test-suite/common.mk

@@ -92,6 +92,7 @@ CPP_TEST_CASES += \
 	bools \
 	casts \
 	cast_operator \
+	char_strings \
 	class_ignore \
 	class_scope_weird \
 	const_const_2 \