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%% options
copyright owner = Dirk Krause
copyright year = 2014-xxxx
license = bsd
%% header
/** @file dk3madso.h Output double values to string.
*/
#include <dk3conf.h>
#include <stdio.h>
#if DK3_HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#if DK3_HAVE_STDINT
#include <stdint.h>
#endif
#if DK3_HAVE_INTTYPES_H
#include <inttypes.h>
#endif
#if DK3_HAVE_LIMITS_H
#include <limits.h>
#endif
#if DK3_HAVE_MATH_H
#include <math.h>
#endif
#if DK3_HAVE_FLOAT_H
#include <float.h>
#endif
#ifdef __cplusplus
extern "C" {
#endif
/** Convert double value to string.
@param rb Result buffer.
@param sz Size of rb (number of char).
@param va Value to convert.
@return 1 on success, 0 on error.
*/
int
dk3ma_d_to_c8_string(char *rb, size_t sz, double va);
/** Convert double value to string.
@param rb Result buffer.
@param sz Size of rb (number of dkChar).
@param va Value to convert.
@return 1 on success, 0 on error.
*/
int
dk3ma_d_to_string(dkChar *rb, size_t sz, double va);
#ifdef __cplusplus
}
#endif
%% module
#include "dk3ma.h"
#if DK3_HAVE_STDLIB_H
#include <stdlib.h>
#endif
#if DK3_HAVE_UNISTD_H
#include <unistd.h>
#endif
#if DK3_HAVE_STRING_H
#include <string.h>
#endif
#if DK3_HAVE_ERRNO_H
#include <errno.h>
#endif
#include "dk3str.h"
$!trace-include
int
dk3ma_d_to_c8_string(char *rb, size_t sz, double va)
{
int back = 0;
#if DK3_HAVE_SNPRINTF || DK3_HAVE__SNPRINTF || DK3_ON_WINDOWS
int res;
if ((NULL != rb) && (0 < sz)) {
#if DK3_HAVE_SNPRINTF
res = snprintf(rb, sz, "%g", va);
#else
res = _snprintf(rb, sz, "%g", va);
#endif
if (0 < res) { /* Anything written? */
if ((size_t)res < sz) { /* Buffer large enough? */
rb[res] = '\0';
rb[sz - 1] = '\0';
back = 1;
} else { /* Buffer too small! */
rb[sz - 1] = '\0';
}
} else { /* Nothing written! */
rb[0] = '\0';
}
}
#else
char buf[128];
if ((NULL != rb) && (0 < sz)) {
sprintf(buf, "%g", va);
if (dk3str_c8_len(buf) < sz) {
dk3str_c8_cpy(rb, buf);
back = 1;
} else {
rb[0] = '\0';
}
}
#endif
return back;
}
int
dk3ma_d_to_string(dkChar *rb, size_t sz, double va)
{
#if DK3_CHAR_SIZE > 1
char buf[128];
char *cptr;
dkChar *dptr;
int back = 0;
if ((NULL != rb) && (0 < sz)) {
if (dk3ma_d_to_c8_string(buf, sizeof(buf), va)) {
if (dk3str_c8_len(buf) < sz) {
back = 1;
dptr = rb; cptr = buf;
while(*cptr) { *(dptr++) = (dkChar)(*(cptr++)); }
*dptr = dkT('\0');
} else {
rb[0] = dkT('\0');
}
} else {
rb[0] = dkT('\0');
}
}
return back;
#else
return (dk3ma_d_to_c8_string(rb, sz, va));
#endif
}
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