duktape/website/api/duk_peval_lstring.yaml

name: duk_peval_lstring

proto: |
  duk_int_t duk_peval_lstring(duk_context *ctx, const char *src, duk_size_t len);

stack: |
  [ ... ] -> [ ... result! ]  (if success, return value == 0)
  [ ... ] -> [ ... err! ]  (if failure, return value != 0)

summary: |
  <p>Like
  <code><a href="#duk_peval">duk_peval()</a></code>, but the eval input
  is given as a C string with explicit length.  The filename associated with the
  temporary eval function is <code>"eval"</code>.</p>

  <div include="no-string-intern.html" />

example: |
  const char *src = /* ... */;
  duk_size_t len = /* ... */;

  if (duk_peval_lstring(ctx, src, len) != 0) {
      printf("eval failed: %s\n", duk_safe_to_string(ctx, -1));
  } else {
      printf("result is: %s\n", duk_get_string(ctx, -1));
  }
  duk_pop(ctx);

tags:
  - compile
  - protected
  - string

seealso:
  - duk_peval_lstring_noresult

introduced: 1.0.0