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//**************************************
//
//INCLUDE files for :Format doubles usin
// g commas and variable precision
//**************************************
//
/* +++Date last modified: 05-Jul-1997 */
/*
** NUMCNVRT.H - Header file for SNIPPETS numerical <=> string conversions
*/
#ifndef NUMCNVRT__H
#define NUMCNVRT__H
#include
#include "sniptype.h"
#include "round.h"
#include "pi.h"
#define R_ERROR -2 /* EVAL.C Range error*/
/*
** Callable library functions begin here
*/
char * base_convert(const char *in, char *out,
size_t len, int rin, int rout);/* Bascnvrt.C */
char * comma_float(double num, char *buf, int dec); /* Commaflt.C */
size_t commafmt(char *buf, int bufsize, long N); /* Commafmt.C */
char * eng(double value, int places);/* Eng.C */
int evaluate(char *line, double *val);/* Eval.C */
char * fmt_money(double amt);/* Fmtmoney.C */
longhexorint(const char *string); /* Hexorint.C */
char * ltostr(long num, char *string,
size_t max_chars, unsigned base); /* Ltostr.C*/
char * ordinal_text(int number); /* Ord_Text.C */
int scanfrac (const char buf[], double *f);/* Scanfrac.C */
unsigned int hstr_i(char *cptr); /* Hstr_I.C*/
char *long2roman(long val, char *buf, size_t buflen); /* L2Roman.C */
long roman2long(const char *str);/* Roman2L.C */
#if defined(__ZTC__) && !defined(__SC__)
char * ltoa(long val, char *buf, int base); /* Ltoa.C */
#endif
/*
** File: STR27SEG.C
*/
struct Seg7disp {
unsigned seg_a : 1;
unsigned seg_b : 1;
unsigned seg_c : 1;
unsigned seg_d : 1;
unsigned seg_e : 1;
unsigned seg_f : 1;
unsigned seg_g : 1;
};
char *str27seg(char *string);
#endif /* NUMCNVRT__H */
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//
/* +++Date last modified: 05-Jul-1997 */
/*
** COMMAFLT.C - Format a double using commas as thousands separators
**and a specified number of significant fractional digits.
**
** public domain by Bruce Wedding and Kurt Kuzba
*/
#include
#include "numcnvrt.h"
#include "snip_str.h"
char *comma_float( double num, char *buf, int dec)
{
char tmp[80];
int bf = 0, cm = 0, tm = 9 - dec + (!dec);
sprintf(tmp, "%.9f", num);
strrev(tmp);
if(dec)
{
while( (buf[bf++] = tmp[tm++]) != '.')
;
while((buf[bf++] = tmp[tm++]) != 0)
{
if(++cm % 3 == 0 && tmp[tm])
buf[bf++] = ',';
}
}
return strrev(buf);
}
#ifdef TEST
#include
int main( void )
{
int i;
char result[80];
double num[10] = {
1.98765,12.98765,123.98765,
1234.98765,12345.98765,123456.98765,
1234567.98765, 12345678.98765, 123456789.98765,
1234567890.98765 };
for ( i = 0; i < 10; i++ )
printf("Before: %-24.5f After: %s \n",
num[i], comma_float(num[i], result, 6));
return 0;
}
#endif /* TEST */