/* 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/. */

#ifndef _CSF_COMMON_E58E5677_950A_424c_B6C2_CA180092E6A2_H
#define _CSF_COMMON_E58E5677_950A_424c_B6C2_CA180092E6A2_H

#include <assert.h>
#include <memory>
#include <vector>
#include <stdlib.h>

/*

This header file defines:

csf_countof
csf_sprintf
csf_vsprintf

*/

/*
  General security tip: Ensure that "format" is never a user-defined string. Format should ALWAYS be something that's built into your code, not
  user supplied. For example: never write:

  csf_sprintf(buffer, csf_countof(buffer), pUserSuppliedString);

  Instead write:

  csf_sprintf(buffer, csf_countof(buffer), "%s", pUserSuppliedString);

*/

#ifdef WIN32
    #if !defined(_countof)
        #if !defined(__cplusplus)
            #define _countof(_Array) (sizeof(_Array) / sizeof(_Array[0]))
        #else
            extern "C++"
            {
            template <typename _CountofType, size_t _SizeOfArray>
            char (*_csf_countof_helper(_CountofType (&_Array)[_SizeOfArray]))[_SizeOfArray];
            #define _countof(_Array) sizeof(*_csf_countof_helper(_Array))
            }
        #endif
    #endif
#else
    #define _countof(_Array) (sizeof(_Array) / sizeof(_Array[0]))
#endif
//csf_countof

#define csf_countof(anArray) _countof(anArray)

//csf_sprintf

#ifdef _WIN32
  //Unlike snprintf, sprintf_s guarantees that the buffer will be null-terminated (unless the buffer size is zero).
  #define csf_sprintf(/* char* */ buffer, /* size_t */ sizeOfBufferInCharsInclNullTerm, /* const char * */ format, ...)\
    _snprintf_s (buffer, sizeOfBufferInCharsInclNullTerm, _TRUNCATE, format, __VA_ARGS__)
#else
  #define csf_sprintf(/* char */ buffer, /* size_t */ sizeOfBufferInCharsInclNullTerm, /* const char * */ format, ...)\
    snprintf (buffer, sizeOfBufferInCharsInclNullTerm, format, __VA_ARGS__);\
    buffer[sizeOfBufferInCharsInclNullTerm-1] = '\0'
#endif

//csf_vsprintf

#ifdef _WIN32
  #define csf_vsprintf(/* char* */ buffer, /* size_t */ sizeOfBufferInCharsInclNullTerm, /* const char * */ format, /* va_list */ vaList)\
    vsnprintf_s (buffer, sizeOfBufferInCharsInclNullTerm, _TRUNCATE, format, vaList);\
    buffer[sizeOfBufferInCharsInclNullTerm-1] = '\0'
#else
  #define csf_vsprintf(/* char */ buffer, /* size_t */ sizeOfBufferInCharsInclNullTerm, /* const char * */ format, /* va_list */ vaList)\
    vsprintf (buffer, format, vaList);\
    buffer[sizeOfBufferInCharsInclNullTerm-1] = '\0'
#endif

#endif