From 5a048a19d3a39805f4dcdcc7a8628f9016aecaab Mon Sep 17 00:00:00 2001
From: heck <heck@pep.foundation>
Date: Tue, 26 Jan 2021 03:34:11 +0100
Subject: [PATCH] lib_test - add funcs and tests for char** (string-by-ref)

---
 examples/lib/lib_test/functions.h |  7 +++++++
 examples/lib/lib_test/lib_test.c  | 28 ++++++++++++++++++++++++++++
 examples/lib/lib_test/main.c      | 30 ++++++++++++++++++++++++++++++
 3 files changed, 65 insertions(+)

diff --git a/examples/lib/lib_test/functions.h b/examples/lib/lib_test/functions.h
index adb8e14..0eb8aff 100644
--- a/examples/lib/lib_test/functions.h
+++ b/examples/lib/lib_test/functions.h
@@ -44,6 +44,13 @@ const char* func_pPcc_args_pPcc(const char* arg1_pPcc);
 const char* func_pPcc_args_pPcc_pPcc(const char* arg1_pPcc,const char* arg2_pPcc);
 
 // String-by-ref (char**)
+char** func_ppPc_args_V();
+
+void func_V_args_ppPc(char** arg1_ppPc);
+
+char** func_ppPc_args_ppPc(char** arg1_ppPc);
+
+char** func_ppPc_args_ppPc_ppPc(char** arg1_ppPc,char** arg2_ppPc);
 
 
 
diff --git a/examples/lib/lib_test/lib_test.c b/examples/lib/lib_test/lib_test.c
index ec043db..2e5bc2f 100644
--- a/examples/lib/lib_test/lib_test.c
+++ b/examples/lib/lib_test/lib_test.c
@@ -1,6 +1,7 @@
 #include "lib_test.h"
 
 #include<stdio.h>
+#include<stdlib.h>
 #include<ctype.h>
 #include<string.h>
 
@@ -75,6 +76,33 @@ const char* func_pPcc_args_pPcc_pPcc(const char* arg1_pPcc,const char* arg2_pPcc
     return strdup(arg1_pPcc);
 }
 
+// String-by-ref (char**)
+char** func_ppPc_args_V() {
+    char* ret = (char*)calloc(23,sizeof(char));
+    ret = "pEp";
+    return &ret;
+}
+
+void func_V_args_ppPc(char** arg1_ppPc) {
+    *arg1_ppPc = (char*) calloc(23, sizeof (char));
+    *arg1_ppPc = "pEp";
+}
+
+char** func_ppPc_args_ppPc(char** arg1_ppPc) {
+    *arg1_ppPc = (char*) calloc(23, sizeof (char));
+    *arg1_ppPc = "pEp";
+    return arg1_ppPc;
+}
+
+char** func_ppPc_args_ppPc_ppPc(char** arg1_ppPc,char** arg2_ppPc) {
+    *arg1_ppPc = (char*) calloc(23, sizeof (char));
+    *arg1_ppPc = "pEp";
+    *arg2_ppPc = (char*) calloc(23, sizeof (char));
+    *arg2_ppPc = "pEp";
+    return arg1_ppPc;
+}
+
+
 // Variables
 // =========
 // _V = Void
diff --git a/examples/lib/lib_test/main.c b/examples/lib/lib_test/main.c
index 11a36eb..8446da0 100644
--- a/examples/lib/lib_test/main.c
+++ b/examples/lib/lib_test/main.c
@@ -101,4 +101,34 @@ int main() {
         const char* ret = func_pPcc_args_pPcc_pPcc(in,in2);
         assert(!strcmp(ret, in));
     }
+
+    // String-by-ref (char**)
+    {
+        printf("testing: func_ppPc_args_V\n");
+        char** ret = func_ppPc_args_V();
+        assert(!strcmp(*ret, "pEp"));
+    }
+    {
+        printf("testing: func_V_args_ppPc\n");
+        char* in = NULL;
+        func_V_args_ppPc(&in);
+        assert(!strcmp(in, "pEp"));
+    }
+    {
+        printf("testing: func_ppPc_args_ppPc\n");
+        char* in = NULL;
+        char** out = func_ppPc_args_ppPc(&in);
+        assert(!strcmp(in, "pEp"));
+        assert(!strcmp(*out, "pEp"));
+    }
+    {
+        printf("testing: func_ppPc_args_ppPc_ppPc\n");
+        char* in = NULL;
+        char* in2 = NULL;
+        char** out = func_ppPc_args_ppPc_ppPc(&in,&in2);
+        assert(!strcmp(in, "pEp"));
+        assert(!strcmp(in2, "pEp"));
+        assert(!strcmp(*out, "pEp"));
+    }
+
 }