List include files using libclang

main.c

#include <stdio.h>
#include <stdlib.h>

#include <clang-c/Index.h>

enum CXChildVisitResult
onVisitCursor(CXCursor cursor, CXCursor parent, CXClientData client_data)
{
  if (clang_getCursorKind(cursor) == CXCursor_InclusionDirective) {
    CXFile file = clang_getIncludedFile(cursor);
    CXString filename = clang_getFileName(file);
    const char *fn = clang_getCString(filename);
    fprintf(stdout, "%s\n", fn);
    clang_disposeString(filename);
  }
  return CXChildVisit_Continue;
}

int main(int argc, char **argv)
{
  if (argc < 2) {
    fputs("error: missing source file argument\n", stderr);
    exit(EXIT_FAILURE);
  }
  
  int clang_argc = argc - 1;
  const char *const *clang_argv = (const char *const *) argv + 1;
  
  CXIndex index = clang_createIndex(0, 1);
  CXTranslationUnit tu =
    clang_createTranslationUnitFromSourceFile(index, NULL, clang_argc, clang_argv, 0, NULL);
  
  if (! tu) {
    fputs("error: failed to compile input\n", stderr);
    exit(EXIT_FAILURE);
  }
  
  clang_visitChildren(clang_getTranslationUnitCursor(tu), onVisitCursor, NULL);
  clang_disposeTranslationUnit(tu);
  clang_disposeIndex(index);
  
  return 0;
}

Hi,

In the above code what values to be passed in the command line for main().

Regards,
Umesh.