1 files changed, 112 insertions, 0 deletions
diff --git a/misc/examples/csmap_insert.c b/misc/examples/csmap_insert.c
new file mode 100644
index 00000000..8f777fc6
--- /dev/null
+++ b/misc/examples/csmap_insert.c
@@ -0,0 +1,112 @@
+#include <stc/cstr.h>
+
+// This implements the std::map insert c++ example at:
+// https://docs.microsoft.com/en-us/cpp/standard-library/map-class?view=msvc-160#example-19
+
+#define i_key int
+#define i_val int
+#define i_tag ii  // Map of int => int
+#include <stc/csmap.h>
+
+#define i_key int
+#define i_val_str
+#define i_tag istr // Map of int => cstr
+#include <stc/csmap.h>
+
+#define i_val csmap_ii_raw
+#define i_opt c_no_cmp
+#define i_tag ii
+#include <stc/cvec.h>
+
+void print_ii(csmap_ii map) {
+    c_foreach (e, csmap_ii, map)
+        printf("(%d, %d) ", e.ref->first, e.ref->second);
+    puts("");
+}
+
+void print_istr(csmap_istr map) {
+    c_foreach (e, csmap_istr, map)
+        printf("(%d, %s) ", e.ref->first, cstr_str(&e.ref->second));
+    puts("");
+}
+
+int main()
+{
+    // insert single values
+    c_auto (csmap_ii, m1) {
+        csmap_ii_insert(&m1, 1, 10);
+        csmap_ii_insert(&m1, 2, 20);
+
+        puts("The original key and mapped values of m1 are:");
+        print_ii(m1);
+
+        // intentionally attempt a duplicate, single element
+        csmap_ii_result ret = csmap_ii_insert(&m1, 1, 111);
+        if (!ret.inserted) {
+            csmap_ii_value pr = *ret.ref;
+            puts("Insert failed, element with key value 1 already exists.");
+            printf("  The existing element is (%d, %d)\n", pr.first, pr.second);
+        }
+        else {
+            puts("The modified key and mapped values of m1 are:");
+            print_ii(m1);
+        }
+        puts("");
+
+        csmap_ii_insert(&m1, 3, 30);
+        puts("The modified key and mapped values of m1 are:");
+        print_ii(m1);
+        puts("");
+    }
+
+    // The templatized version inserting a jumbled range
+    c_auto (csmap_ii, m2)
+    c_auto (cvec_ii, v) {
+        typedef cvec_ii_value ipair;
+        cvec_ii_push(&v, (ipair){43, 294});
+        cvec_ii_push(&v, (ipair){41, 262});
+        cvec_ii_push(&v, (ipair){45, 330});
+        cvec_ii_push(&v, (ipair){42, 277});
+        cvec_ii_push(&v, (ipair){44, 311});
+
+        puts("Inserting the following vector data into m2:");
+        c_foreach (e, cvec_ii, v)
+            printf("(%d, %d) ", e.ref->first, e.ref->second);
+        puts("");
+
+        c_foreach (e, cvec_ii, v) 
+            csmap_ii_insert_or_assign(&m2, e.ref->first, e.ref->second);
+
+        puts("The modified key and mapped values of m2 are:");
+        c_foreach (e, csmap_ii, m2)
+            printf("(%d, %d) ", e.ref->first, e.ref->second);
+        puts("\n");
+    }
+
+    // The templatized versions move-constructing elements
+    c_auto (csmap_istr, m3) {
+        csmap_istr_value ip1 = {475, cstr_lit("blue")}, ip2 = {510, cstr_lit("green")};
+
+        // single element
+        csmap_istr_insert(&m3, ip1.first, cstr_move(&ip1.second));
+        puts("After the first move insertion, m3 contains:");
+        print_istr(m3);
+
+        // single element
+        csmap_istr_insert(&m3, ip2.first, cstr_move(&ip2.second));
+        puts("After the second move insertion, m3 contains:");
+        print_istr(m3);
+        puts("");
+    }
+
+    c_auto (csmap_ii, m4) {
+        // Insert the elements from an initializer_list
+        c_forlist (i, csmap_ii_raw, {{ 4, 44 }, { 2, 22 }, { 3, 33 },
+                                     { 1, 11 }, { 5, 55 }})
+            csmap_ii_insert(&m4, c_PAIR(i.ref));
+
+        puts("After initializer_list insertion, m4 contains:");
+        print_ii(m4);
+        puts("");
+    }
+}