hphp/runtime/base/zend-functions.h

   1 /*
   2    +----------------------------------------------------------------------+
   3    | HipHop for PHP                                                       |
   4    +----------------------------------------------------------------------+
   5    | Copyright (c) 2010-present Facebook, Inc. (http://www.facebook.com)  |
   6    | Copyright (c) 1998-2010 Zend Technologies Ltd. (http://www.zend.com) |
   7    +----------------------------------------------------------------------+
   8    | This source file is subject to version 2.00 of the Zend license,     |
   9    | that is bundled with this package in the file LICENSE, and is        |
  10    | available through the world-wide-web at the following url:           |
  11    | http://www.zend.com/license/2_00.txt.                                |
  12    | If you did not receive a copy of the Zend license and are unable to  |
  13    | obtain it through the world-wide-web, please send a note to          |
  14    | license@zend.com so we can mail you a copy immediately.              |
  15    +----------------------------------------------------------------------+
  16 */
  17
  18 #ifndef incl_HPHP_ZEND_FUNCTIONS_H_
  19 #define incl_HPHP_ZEND_FUNCTIONS_H_
  20
  21 #include <folly/Range.h>
  22
  23 #include <cstdint>
  24
  25 #include "hphp/runtime/base/datatype.h"
  26
  27 namespace HPHP {
  28 ///////////////////////////////////////////////////////////////////////////////
  29 // zend logic: These are not string utilities, but zend's special language
  30 // semantics.
  31
  32 /**
  33  * Testing whether a string is numeric or not.
  34  */
  35 DataType is_numeric_string(const char* str, int length, int64_t* lval,
  36                            double* dval, int allow_errors = 0,
  37                            int* overflow_info = nullptr);
  38
  39 /**
  40  * Whether or not a string is a valid variable name.
  41  */
  42 bool is_valid_var_name(const char *var_name, int len);
  43
  44 ///////////////////////////////////////////////////////////////////////////////
  45
  46 /*
  47  * Adapted from ap_php_conv_10 for fast signed integer to string conversion.
  48  */
  49 folly::StringPiece conv_10(int64_t num, char* buf_end);
  50
  51 ///////////////////////////////////////////////////////////////////////////////
  52 }
  53
  54 #endif // incl_HPHP_ZEND_FUNCTIONS_H_