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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: dk4mai8dbl.ctr
*/
/*
Copyright (C) 2015-2017, 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 dk4mai8dbl.c The dk4mai8dbl module.
*/
#line 76 "dk4mai8dbl.ctr"
#include "dk4mai8dbl.h"
#include "dk4str8.h"
#if DK4_HAVE_ERRNO_H
#ifndef ERRNO_H_INCLUDED
#include <errno.h>
#define ERRNO_H_INCLUDED 1
#endif
#endif
#if DK4_HAVE_LOCALE_H
#ifndef LOCALE_H_INCLUDED
#include <locale.h>
#define LOCALE_H_INCLUDED 1
#endif
#endif
#if DK4_HAVE_STDLIB_H
#ifndef STDLIB_H_INCLUDED
#include <stdlib.h>
#define STDLIB_H_INCLUDED 1
#endif
#endif
#if DK4_HAVE_MATH_H
#ifndef MATH_H_INCLUDED
#include <math.h>
#define MATH_H_INCLUDED 1
#endif
#endif
/** Default locale to use.
*/
static const char locale_kw[] = { "C" };
/** Read double value from char string.
@param rp Address of result variable.
@param src String to process.
@param endptr Address of pointer variable.
A pointer to the first character not processed
is stored here. The function may also store
a NULL pointer here.
The pointer variable is probably left unchanged
on errors or if strtod() is not available on your
system (the sscanf() function is used as fallback).
@param atg Allow trailing garbage:
0=no unprocessable trailing bytes allowed,
1=trailing whitespaces allowed,
2=any trailing characaters allowed.
@param erp Error report, may be NULL.
@return 1 on success, 0 on error.
Error codes:
DK4_E_INVALID_ARGUMENTS if rp or src is NULL,
DK4_E_SYNTAX if there are unexpected characters in the
string,
DK4_E_MATH_OVERFLOW if a mathematical overflow occurs,
DK4_E_MATH_UNDERFLOW if a mathematical underflow occurs.
*/
static
int
dk4ma_internal_input_c8_double(
double *rp,
const char *src,
const char **endptr,
int atg,
dk4_er_t *erp
)
{
#if DK4_HAVE_STRTOD || DK4_HAVE__STRTOD
double val = 0.0;
char *myend = NULL;
int back = 0;
int xerr = 0;
if ((NULL != rp) && (NULL != src)) {
errno = 0;
#if DK4_HAVE_STRTOD
val = strtod(src, &myend);
#else
val = _strtod(src, &myend);
#endif
xerr = errno;
if (NULL != endptr) { *endptr = myend; }
if (myend != src) {
switch (atg) {
case 2: {
back = 1;
} break;
case 1: {
if (NULL != dk4str8_start(myend, NULL)) {
dk4error_set_simple_error_code(erp, DK4_E_SYNTAX);
} else {
back = 1;
}
} break;
default: {
if ('\0' == *myend) {
back = 1;
} else {
dk4error_set_simple_error_code(erp, DK4_E_SYNTAX);
}
} break;
}
if (1 == back) {
if (ERANGE == xerr) {
if (HUGE_VAL == val) {
back = 0;
dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW);
}
if ((-HUGE_VAL) == val) {
back = 0;
dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW);
}
if (0.0 == val) {
back = 0;
dk4error_set_simple_error_code(erp, DK4_E_MATH_UNDERFLOW);
}
}
}
} else {
dk4error_set_simple_error_code(erp, DK4_E_SYNTAX);
}
if (1 == back) {
*rp = val;
}
} else {
dk4error_set_simple_error_code(erp, DK4_E_INVALID_ARGUMENTS);
}
return back;
#else
#if DK4_USE_PRINTF_SCANF
double val = 0.0;
int back = 0;
if ((NULL != rp) && (NULL != src)) {
if (1 == sscanf(src, "%lf", &val)) {
*rp = val;
back = 1;
} else {
dk4error_set_simple_error_code(erp, DK4_E_SYNTAX);
}
} else {
dk4error_set_simple_error_code(erp, DK4_E_INVALID_ARGUMENTS);
}
return back;
#else
dk4error_set_simple_error_code(erp, DK4_E_NOT_SUPPORTED);
return 0;
#endif
#endif
}
int
dk4ma_input_c8_double(
double *rp,
const char *src,
const char **endptr,
int atg,
dk4_er_t *erp
)
{
#if (DK4_HAVE_SETLOCALE) && defined(LC_NUMERIC)
char *oldloc = NULL;
#endif
int back = 0;
#if (DK4_HAVE_SETLOCALE) && defined(LC_NUMERIC)
oldloc = setlocale(LC_NUMERIC, NULL);
(void)setlocale(LC_NUMERIC, locale_kw);
back = dk4ma_internal_input_c8_double(rp, src, endptr, atg, erp);
(void)setlocale(LC_NUMERIC, oldloc);
#else
back = dk4ma_internal_input_c8_double(rp, src, endptr, atg, erp);
#endif
return back;
}
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