Let cco_end(value) return value. Should be last in function anyway.

Assume context always non-NULL when calling cco_alive(context).

2 files changed, 5 insertions, 12 deletions

diff --git a/misc/examples/coread.c b/misc/examples/coread.c
index 3d49c5df..4df80339 100644
--- a/misc/examples/coread.c
+++ b/misc/examples/coread.c
@@ -24,8 +24,7 @@ bool file_nextline(struct file_nextline* U)
             printf("finish\n");
             cstr_drop(&U->line);
             fclose(U->fp);
-    cco_end();
-    return false;
+    cco_end(false);
 }
 
 int main(void) {
@@ -33,9 +32,6 @@ int main(void) {
     int n = 0;
     while (file_nextline(&z)) {
         printf("%3d %s\n", ++n, cstr_str(&z.line));
-
-        // stop after 15 lines:
-        if (n == 15) (void)cco_stop(&z);
     }
     printf("state %d\n", z.cco_state);
 }
diff --git a/misc/examples/coroutines.c b/misc/examples/coroutines.c
index 5d2a178a..89b428ee 100644
--- a/misc/examples/coroutines.c
+++ b/misc/examples/coroutines.c
@@ -17,8 +17,7 @@ bool iterate(struct iterate* I) {
             for (I->y = 0; I->y < I->max_y; I->y++)
                 cco_yield(true);
         cco_final:
-    cco_end();
-    return false;
+    cco_end(false);
 }
 
 // Use coroutine to create a fibonacci sequence generator:
@@ -42,9 +41,7 @@ int64_t fibonacci(struct fibonacci* F) {
             F->b = sum;
         }
         cco_final:
-    cco_end();
-
-    return -1;
+    cco_end(-1);
 }
 
 // Combine
@@ -60,10 +57,10 @@ bool combine(struct combine* C) {
         cco_yield_coroutine(&C->it, iterate(&C->it), true);
         cco_yield_coroutine(&C->fib, fibonacci(&C->fib), true);
         // May reuse the C->it context; state has been reset to 0.
+        C->it.max_x = 2; C->it.max_y = 2;
         cco_yield_coroutine(&C->it, iterate(&C->it), true);
         cco_final: puts("final");
-    cco_end();
-    return false;
+    cco_end(false);
 }
 
 int main(void) {