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| author | Tyge Løvset <[email protected]> | 2021-05-21 16:02:25 +0200 |
|---|---|---|
| committer | Tyge Løvset <[email protected]> | 2021-05-21 16:02:25 +0200 |
| commit | 77e61266489a2e69693f714b601f3824d16ae1ba (patch) | |
| tree | 21718c5bf4a9baa80558b3577daf026304c176b0 /examples | |
| parent | 345bff3cc9a36135a00bb963b3fada09d054980d (diff) | |
| download | STC-modified-77e61266489a2e69693f714b601f3824d16ae1ba.tar.gz STC-modified-77e61266489a2e69693f714b601f3824d16ae1ba.zip | |
API change: c_breakwith => c_exitwith, c_breakdefer => c_exitdefer. Added csmap_insert.c example.
Diffstat (limited to 'examples')
| -rw-r--r-- | examples/csmap_insert.c | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/examples/csmap_insert.c b/examples/csmap_insert.c new file mode 100644 index 00000000..e207a2a6 --- /dev/null +++ b/examples/csmap_insert.c @@ -0,0 +1,98 @@ +#include <stc/csmap.h>
+#include <stc/cvec.h>
+#include <stc/csview.h>
+#include <stdio.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
+
+
+using_csmap(ii, int, int); // Map of int => int
+using_csmap_strval(istr, int); // Map of int => cstr
+using_cvec(ii, csmap_ii_rawvalue_t, c_no_compare);
+
+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, e.ref->second.str);
+ puts("");
+}
+
+int main()
+{
+ // insert single values
+ c_with (csmap_ii m1 = csmap_ii_init(), csmap_ii_del(&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_t ret = csmap_ii_insert(&m1, 1, 111);
+ if (!ret.inserted) {
+ csmap_ii_value_t 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_withvar(type, v) is shorthand for: c_with (type v = type_init(), type_del(&v))
+ c_withvar (csmap_ii, m2)
+ c_withvar (cvec_ii, v) {
+ cvec_ii_push_back(&v, (cvec_ii_value_t){43, 294});
+ cvec_ii_push_back(&v, (cvec_ii_value_t){41, 262});
+ cvec_ii_push_back(&v, (cvec_ii_value_t){45, 330});
+ cvec_ii_push_back(&v, (cvec_ii_value_t){42, 277});
+ cvec_ii_push_back(&v, (cvec_ii_value_t){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("");
+
+ csmap_ii_emplace_items(&m2, v.data, cvec_ii_size(v));
+
+ puts("The modified key and mapped values of m2 are:");
+ c_foreach (e, cvec_ii, v) printf("(%d, %d) ", e.ref->first, e.ref->second);
+ puts("\n");
+ }
+
+ // The templatized versions move-constructing elements
+ c_withvar (csmap_istr, m3) {
+ csmap_istr_value_t 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_withvar (csmap_ii, m4) {
+ // Insert the elements from an initializer_list
+ c_emplace(csmap_ii, m4, { { 4, 44 }, { 2, 22 }, { 3, 33 }, { 1, 11 }, { 5, 55 } });
+ puts("After initializer_list insertion, m4 contains:");
+ print_ii(m4);
+ puts("");
+ }
+}
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