continue
		}
		maps[ent.Key] = ent.Value
		// keys = append(keys, ent.Key)
	}
	return maps
}

// Keys returns a slice of the keys in the cache, from oldest to newest.
// Expired entries are filtered out.
func (c *LRU[K, V]) Keys() []K {
	c.mu.Lock()
	defer c.mu.Unlock()
	keys := make([]K, 0, len(c.items))
	now := time.Now()
	for ent := c.evictList.Back(); ent != nil; ent = ent.PrevEntry() {

        this.signingLock.lock();
        try {
            if (this.closed) {
                throw new IllegalStateException("SigningDigest is closed");
            }

            // zero out signature field
            final int index = offset + SIGNATURE_OFFSET;
            for (int i = 0; i < SIGNATURE_LENGTH; i++) {
                data[index + i] = 0;
            }

            // set signed flag

a C source file for 6c; both compile as part of the named package
(gmp, in this example).  The third, gcc.c, is a C source file for gcc;
it compiles into a shared object (.so) that is dynamically linked into
any 6.out that imports the first two files.

The stanza

	// #include <gmp.h>
	import "C"

is a signal to cgo.  The doc comment on the import of "C" provides

          ) as SSLSocket

        val tlsEquipPlan = planWithCurrentOrInitialConnectionSpec(connectionSpecs, sslSocket)
        val connectionSpec = connectionSpecs[tlsEquipPlan.connectionSpecIndex]

        // Figure out the next connection spec in case we need a retry.
        retryTlsConnection = tlsEquipPlan.nextConnectionSpec(connectionSpecs, sslSocket)

        connectionSpec.apply(sslSocket, isFallback = tlsEquipPlan.isTlsFallback)

          .url(server!!.url("/"))
          .build(),
      )
    assertFailsWith<IOException> {
      call.execute()
    }.also { expected ->
      assertThat(expected.message).isIn("timeout", "Read timed out")
    }
    assertThat(listener.recordedEventTypes()).containsExactly(
      "ConnectStart",
      "ConnectEnd",
      "ConnectionAcquired",
      "NoNewExchanges",
      "ConnectionReleased",

    extends AbstractMap<K, V> implements Serializable {
  /*
   * TODO: Make this a drop-in replacement for j.u. versions, actually drop them in, and test the
   * world. Figure out what sort of space-time tradeoff we're actually going to get here with the
   * *Map variants. This class is particularly hard to benchmark, because the benefit is not only in

# o applicationBehaviorMap: (NotRequired - Default map:{})
# o outputPackageAdjustmentMap: (NotRequired - Default map:{})
# o dbfluteSystemFinalTimeZone: (NotRequired - Default null)
#
# *The line that starts with '#' means comment-out.
#
map:{
    # /- - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    # o database: (Required)
    #  This is the target database, only considered when generating
    #  the SQL for your DBFlute project.

     *
     * @return The uncanonicalized full URL of this SMB resource.
     */

    String getPath();

    /**
     * Returns the full URL of this SMB resource with '.' and '..' components
     * factored out. An <code>SmbFile</code> constructed with the result of
     * this method will result in an <code>SmbFile</code> that is equal to
     * the original.
     *
     * @return The canonicalized URL of this SMB resource.
     */

	accessKeys, err := globalIAMSys.ListAllAccessKeys(ctx)
	if err != nil {
		writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
		return
	}

	for _, accessKey := range accessKeys {
		// Filter out any disqualifying access keys
		_, ok := accessKey.Claims[subClaim]
		if !ok {
			continue // OpenID access keys must have a sub claim
		}

but instead calls a Go helper function that wraps the C library malloc
but guarantees never to return nil. If C's malloc indicates out of memory,
the helper function crashes the program, like when Go itself runs out
of memory. Because C.malloc cannot fail, it has no two-result form
that returns errno.

# C references to Go