Data commit

Task/Use-another-language-to-call-a-function/C/use-another-language-to-call-a-function-1.c

@@ -0,0 +1,32 @@
+#if 0
+I rewrote the driver according to good sense, my style,
+and discussion.
+
+This is file main.c on Autumn 2011 ubuntu linux release.
+The emacs compile command output:
+
+-*- mode: compilation; default-directory: "/tmp/" -*-
+Compilation started at Mon Mar 12 20:25:27
+
+make -k CFLAGS=-Wall main.o
+cc -Wall   -c -o main.o main.c
+
+Compilation finished at Mon Mar 12 20:25:27
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+
+extern int Query(char *Data, unsigned *Length);
+
+int main(int argc, char *argv[]) {
+  char Buffer[1024], *pc;
+  unsigned Size = sizeof(Buffer);
+  if (!Query(Buffer, &Size))
+    fputs("failed to call Query", stdout);
+  else
+    for (pc = Buffer; Size--; ++pc)
+      putchar(*pc);
+  putchar('\n');
+  return EXIT_SUCCESS;
+}

Task/Use-another-language-to-call-a-function/C/use-another-language-to-call-a-function-2.c

@@ -0,0 +1,21 @@
+#if 0
+This is file query.c
+
+-*- mode: compilation; default-directory: "/tmp/" -*-
+Compilation started at Mon Mar 12 20:36:25
+
+make -k CFLAGS=-Wall query.o
+cc -Wall   -c -o query.o query.c
+
+Compilation finished at Mon Mar 12 20:36:26
+#endif
+
+#include<string.h>
+
+int Query(char *Data, unsigned *Length) {
+  const char *message = "Here am I";
+  unsigned n = strlen(message);
+  if (n <= *Length)
+    return strncpy(Data, message, (size_t)n), *Length = n, 1;
+  return 0;
+}

Task/Use-another-language-to-call-a-function/C/use-another-language-to-call-a-function-3.c

@@ -0,0 +1,3 @@
+$ gcc main.c query.o -o main && ./main
+Here am I
+$