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-%% options
-
-copyright owner = Dirk Krause
-copyright year = 2015-xxxx
-SPDX-License-Identifier: BSD-3-Clause
-
-
-%% header
-
-/** @file
- Double to char text conversion using the more secure functions
- _snprintf_s(), _snprintf() or snprintf() instead of sprintf()
- if available.
-
- CRT on Windows: Required.
-*/
-
-#ifndef DK4CONF_H_INCLUDED
-#if DK4_BUILDING_DKTOOLS4
-#include "dk4conf.h"
-#else
-#include <dktools-4/dk4conf.h>
-#endif
-#endif
-
-#ifndef DK4TYPES_H_INCLUDED
-#if DK4_BUILDING_DKTOOLS4
-#include "dk4types.h"
-#else
-#include <dktools-4/dk4types.h>
-#endif
-#endif
-
-#ifndef DK4ERROR_H_INCLUDED
-#if DK4_BUILDING_DKTOOLS4
-#include "dk4error.h"
-#else
-#include <dktools-4/dk4error.h>
-#endif
-#endif
-
-#ifndef STDLIB_H_INCLUDED
-#include <stdlib.h>
-#define STDLIB_H_INCLUDED 1
-#endif
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/** Convert double value to string.
- @param dptr Destination buffer pointer.
- @param szdptr Size of destination buffer.
- @param v Value to convert.
- @param erp Error report, may be NULL.
- @return 1 on success, 0 on error.
-
- Error codes:
- - DK4_E_INVALID_ARGUMENTS<br>
- if dptr is NULL or szdptr is less than 2,
- - DK4_E_BUFFER_TOO_SMALL<br>
- if the destination buffer is too small to store the string.
-*/
-int
-dk4double_to_string_c8(char *dptr, size_t szdptr, double v, dk4_er_t *erp);
-
-#ifdef __cplusplus
-}
-#endif
-
-
-
-%% module
-
-#include "dk4conf.h"
-#include "dk4dblc8.h"
-#include "dk4str8.h"
-
-
-int
-dk4double_to_string_c8(char *dptr, size_t szdptr, double v, dk4_er_t *erp)
-{
-#if DK4_HAVE__SNPRINTF_S
- /* +++ _snprintf_s */
- char buf[64];
- int back = 0;
- int res = 0;
- if (NULL != dptr) { *dptr = '\0'; }
- if ((NULL != dptr) && (1 < szdptr)) {
- res = _snprintf_s(buf, sizeof(buf), (sizeof(buf)-1), "%lg", v);
- if ((0 < res) && ((size_t)res < sizeof(buf))) {
- buf[res] = '\0';
- back = dk4str8_cpy_s(dptr, szdptr, buf, erp);
- } else {
- dk4error_set_simple_error_code(erp, DK4_E_BUFFER_TOO_SMALL);
- }
- } else {
- dk4error_set_simple_error_code(erp, DK4_E_INVALID_ARGUMENTS);
- }
- return back;
- /* --- _snprintf_s */
-#else
-#if DK4_HAVE__SNPRINTF
- /* +++ _snprintf */
- char buf[64];
- int back = 0;
- int res = 0;
- if (NULL != dptr) { *dptr = '\0'; }
- if ((NULL != dptr) && (1 < szdptr)) {
- res = _snprintf(buf, sizeof(buf), "%lg", v);
- if ((0 < res) && ((size_t)res < sizeof(buf))) {
- buf[res] = '\0';
- back = dk4str8_cpy_s(dptr, szdptr, buf, erp);
- } else {
- dk4error_set_simple_error_code(erp, DK4_E_BUFFER_TOO_SMALL);
- }
- } else {
- dk4error_set_simple_error_code(erp, DK4_E_INVALID_ARGUMENTS);
- }
- return back;
- /* --- _snprintf */
-#else
-#if DK4_HAVE_SNPRINTF
- /* +++ snprintf */
- char buf[64];
- int back = 0;
- int res = 0;
- if (NULL != dptr) { *dptr = '\0'; }
- if ((NULL != dptr) && (1 < szdptr)) {
- res = snprintf(buf, sizeof(buf), "%lg", v);
- if ((0 < res) && ((size_t)res < sizeof(buf))) {
- buf[res] = '\0';
- back = dk4str8_cpy_s(dptr, szdptr, buf, erp);
- } else {
- dk4error_set_simple_error_code(erp, DK4_E_BUFFER_TOO_SMALL);
- }
- } else {
- dk4error_set_simple_error_code(erp, DK4_E_INVALID_ARGUMENTS);
- }
- return back;
- /* --- snprintf */
-#else
- /* +++ sprintf */
- char buf[64];
- int back = 0;
- int res = 0;
- if (NULL != dptr) { *dptr = '\0'; }
- if ((NULL != dptr) && (1 < szdptr)) {
- sprintf(buf, "%lg", v);
- back = dk4str8_cpy_s(dptr, szdptr, buf, erp);
- } else {
- dk4error_set_simple_error_code(erp, DK4_E_INVALID_ARGUMENTS);
- }
- return back;
- /* --- sprintf */
-#endif
-#endif
-#endif
-}
-