Quelle testPrintf.cpp Sprache: C

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* vim: set ts=8 sts=2 et sw=2 tw=80:
*/
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "mozilla/IntegerPrintfMacros.h"

#include <cfloat>
#include <stdarg.h>

#include "js/Printf.h"

#include "jsapi-tests/tests.h"

static bool MOZ_FORMAT_PRINTF(2, 3)
    print_one(const char* expect, const char* fmt, ...) {
  va_list ap;

  va_start(ap, fmt);
  JS::UniqueChars output = JS_vsmprintf(fmt, ap);
  va_end(ap);

  return output && !strcmp(output.get(), expect);
}

static const char* zero() {
  // gcc 9 is altogether too clever about detecting that this will always
  // return nullptr. Do not replace 0x10 with 0x1; it will no longer work.
  return uintptr_t(&zero) == 0x10 ? "never happens" : nullptr;
}

BEGIN_TEST(testPrintf) {
  CHECK(print_one("23", "%d", 23));
  CHECK(print_one("-1", "%d", -1));
  CHECK(print_one("23", "%u", 23u));
  CHECK(print_one("0x17", "0x%x", 23u));
  CHECK(print_one("0xFF", "0x%X", 255u));
  CHECK(print_one("027", "0%o", 23u));
  CHECK(print_one("-1", "%hd", (short)-1));
  // This could be expanded if need be, it's just convenient to do
  // it this way.
  if (sizeof(short) == 2) {
    CHECK(print_one("8000", "%hx", (unsigned short)0x8000));
  }
  CHECK(print_one("0xf0f0", "0x%lx", 0xf0f0ul));
  CHECK(print_one("0xF0F0", "0x%llX", 0xf0f0ull));
  CHECK(print_one("27270", "%zu", (size_t)27270));
  CHECK(print_one("27270", "%zu", (size_t)27270));
  CHECK(print_one("hello", "he%so", "ll"));
  CHECK(print_one("(null)", "%s", ::zero()));
  CHECK(print_one("0", "%p", (char*)0));
  CHECK(print_one("h", "%c", 'h'));
  CHECK(print_one("1.500000", "%f", 1.5f));
  CHECK(print_one("1.5", "%g", 1.5));

  // Regression test for bug#1350097.  The bug was an assertion
  // failure caused by printing a very long floating point value.
  print_one("ignore", "%lf", DBL_MAX);

  CHECK(print_one("2727", "%" PRIu32, (uint32_t)2727));
  CHECK(print_one("aa7", "%" PRIx32, (uint32_t)2727));
  CHECK(print_one("2727", "%" PRIu64, (uint64_t)2727));
  CHECK(print_one("aa7", "%" PRIx64, (uint64_t)2727));

  return true;
}
END_TEST(testPrintf)

quality100%

¤ Dauer der Verarbeitung: 0.19 Sekunden (vorverarbeitet) ¤

Wurzel

Suchen

Beweissystem der NASA

Beweissystem Isabelle

NIST Cobol Testsuite

Cephes Mathematical Library

Wiener Entwicklungsmethode

Haftungshinweis

Die Informationen auf dieser Webseite wurden nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit, noch Qualität der bereit gestellten Informationen zugesichert.

Bemerkung:

Die farbliche Syntaxdarstellung ist noch experimentell.