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/*
	WARNING: This file was generated by dkct.
	Changes you make here will be lost if dkct is run again!
	You should modify the original source and run dkct on it.
	Original source: dk3masts.ctr
*/

/*
Copyright (C) 2014-2017, Dirk Krause

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:

* Redistributions of source code must retain the above copyright notice,
  this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above opyright notice,
  this list of conditions and the following disclaimer in the documentation
  and/or other materials provided with the distribution.
* Neither the name of the author nor the names of contributors may be used
  to endorse or promote products derived from this software without specific
  prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS''
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

/**	@file dk3masts.c The dk3masts module.
*/


#line 39 "dk3masts.ctr"

#include "dk3ma.h"
#include <stdio.h>
#include "dk3mem.h"
#include "dk3str.h"





#line 48 "dk3masts.ctr"



int
dk3ma_sz_from_string(size_t *rp, dkChar const *src, int *ec)
{
  /* Private copy of string, can be modified. */
  dkChar	 buffer[DK3_MEM_ALIGN((8*sizeof(dk3_um_t)+1),16)];
  dkChar const	*ptr;			/* Start of original text */
  size_t	 lgt;			/* Length of text in buffer */
  dk3_um_t	 convres = (dk3_um_t)1;	/* Conversion result */
  dk3_um_t	 factor	=  (dk3_um_t)1;	/* Constant factor */
  int		 myec	=	0;	/* Private error code */
  int		 back	=	0;	/* Function result */
  int		 done	=	0;	/* Flag: No conversion necessary */
  

#line 64 "dk3masts.ctr"
  if ((NULL != rp) && (NULL != src)) {
    ptr = dk3str_start(src, NULL);
    if (NULL != ptr) {
      if (dk3str_len(ptr) < DK3_SIZEOF(buffer,dkChar)) {
        dk3str_cpy(buffer, ptr);
	dk3str_chomp(buffer, NULL);
	lgt = dk3str_len(buffer);
	if (0 < lgt) {
	  switch(buffer[lgt-1]) {
	    case dkT('k'): case dkT('K'): {
	      factor = (dk3_um_t)1024;
	      buffer[lgt-1] = dkT('\0');
	      if (1 == lgt) { done = 1; }
	    } break;
	    case dkT('m'): case dkT('M'): {
	      factor = dk3ma_um_mul_ok((dk3_um_t)1024, (dk3_um_t)1024, &myec);
	      buffer[lgt-1] = dkT('\0');
	      if (1 == lgt) { done = 1; }
	    } break;
	    case dkT('g'): case dkT('G'): {
	      factor = dk3ma_um_mul_ok(
	        dk3ma_um_mul_ok((dk3_um_t)1024, (dk3_um_t)1024, &myec),
		(dk3_um_t)1024, &myec
	      );
	      buffer[lgt-1] = dkT('\0');
	      if (1 == lgt) { done = 1; }
	    } break;
	  }
	  if (0 == myec) {
	    if (0 == done) {		

#line 94 "dk3masts.ctr"
	      if (0 != dk3ma_um_from_string(&convres, buffer, ec)) {
	        

#line 96 "dk3masts.ctr"
	        convres = dk3ma_um_mul_ok(convres, factor, &myec);
		if ((dk3_um_t)DK3_SIZE_T_MAX >= convres) {
		  *rp = (size_t)convres;
		  back = 1;
#if DK3_ON_WINDOWS
		  

#line 102 "dk3masts.ctr"
#else
		  

#line 104 "dk3masts.ctr"
#endif
		} else {		

#line 106 "dk3masts.ctr"
		  if (NULL != ec) { *ec = DK3_ERROR_MATH_OVERFLOW; }
		}
	      } else {			

#line 109 "dk3masts.ctr"
	      }
	    } else {			

#line 111 "dk3masts.ctr"
	      convres = dk3ma_um_mul_ok(convres, factor, &myec);
	      if ((dk3_um_t)DK3_SIZE_T_MAX >= convres) {
	        *rp = (size_t)convres;
	        back = 1;		

#line 115 "dk3masts.ctr"
#if DK3_ON_WINDOWS
		

#line 117 "dk3masts.ctr"
#else
		

#line 119 "dk3masts.ctr"
#endif
	      } else {			

#line 121 "dk3masts.ctr"
	        if (NULL != ec) { *ec = DK3_ERROR_MATH_OVERFLOW; }
	      }
	    }
	    if (1 == back) {
	      if (0 != myec) {		

#line 126 "dk3masts.ctr"
	        back = 0;
		if (NULL != ec) { *ec = myec; }
	      }
	    }
	  } else {			

#line 131 "dk3masts.ctr"
	    if (NULL != ec) { *ec = myec; }
	  }
	} else {			

#line 134 "dk3masts.ctr"
	  if (NULL != ec) { *ec = DK3_ERROR_INVALID_ARGS; }
	}
      } else {				

#line 137 "dk3masts.ctr"
        if (NULL != ec) { *ec = DK3_ERROR_INVALID_ARGS; }
      }
    } else {				

#line 140 "dk3masts.ctr"
      if (NULL != ec) { *ec = DK3_ERROR_INVALID_ARGS; }
    }
  } else {				

#line 143 "dk3masts.ctr"
    if (NULL != ec) { *ec = DK3_ERROR_INVALID_ARGS; }
  } 

#line 145 "dk3masts.ctr"
  return back;
}