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|
/*
* SCFNCA.C - some more core routines used by many packages
*
* Source Version: 2.0
* Software Release #92-0043
*
*/
#include "cpyright.h"
#include "score.h"
/*--------------------------------------------------------------------------*/
#define SC_TRANS_DATA(dtype, pd, stype, s, n) \
{dtype *d; \
d = (dtype *) *pd; \
if (d == NULL) \
{d = FMAKE_N(dtype, n, "SC_TRANS_DATA:d"); \
*pd = (byte *) d;}; \
if (d != NULL) \
{if (strcmp(stype, SC_DOUBLE_S) == 0) \
{SC_TRANS_TYPE(d, double, s, n);} \
else if (strcmp(stype, SC_FLOAT_S) == 0) \
{SC_TRANS_TYPE(d, float, s, n);} \
else if (strcmp(stype, SC_INTEGER_S) == 0) \
{SC_TRANS_TYPE(d, int, s, n);} \
else if (strcmp(stype, SC_LONG_S) == 0) \
{SC_TRANS_TYPE(d, long, s, n);} \
else if (strcmp(stype, SC_SHORT_S) == 0) \
{SC_TRANS_TYPE(d, short, s, n);} \
else if (strcmp(stype, SC_CHAR_S) == 0) \
{SC_TRANS_TYPE(d, char, s, n);}; \
ret = TRUE;} \
else \
ret = FALSE;}
/*--------------------------------------------------------------------------*/
#define SC_TRANS_TYPE(d, stype, s, n) \
{stype *ps; \
ps = (stype *) s; \
for (i = 0; i < n; i++, *d++ = *ps++);}
/*--------------------------------------------------------------------------*/
#ifdef IBMMP
# undef STDOUT
# include <pm_util.h>
int
SC_ibm_non_ANSI_compliant = FALSE;
#endif
PFInt
SC_convert_hook = SC_convert,
SC_sizeof_hook = SC_sizeof;
PFVoid
SC_container_hook = SC_container;
/*--------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------*/
/* SC_CONTAINER - simple place holder for a potentially complicated
* - function
*/
void SC_container(dtype, stype)
char *dtype, *stype;
{
strcpy(dtype, stype);
return;}
/*--------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------*/
/* SC_CONVERT - convert data from one binary format to another
* - if destination pointer is NULL, space is allocated
* - if types are the same do nothing but return -1
* - arguments:
* - dtype - type of destination data
* - d - pointer to converted data destination
* - stype - type of source data
* - s - pointer to data to be converted
* - n - number of data items
* - flag - free source data flag
*/
int SC_convert(dtype, pd, stype, s, n, flag)
char *dtype;
byte **pd;
char *stype;
byte *s;
int n, flag;
{int i, ret;
ret = FALSE;
if (strcmp(dtype, SC_DOUBLE_S) == 0)
{SC_TRANS_DATA(double, pd, stype, s, n);}
else if (strcmp(dtype, SC_FLOAT_S) == 0)
{SC_TRANS_DATA(float, pd, stype, s, n);}
else if (strcmp(dtype, SC_INTEGER_S) == 0)
{SC_TRANS_DATA(int, pd, stype, s, n);}
else if (strcmp(dtype, SC_LONG_S) == 0)
{SC_TRANS_DATA(long, pd, stype, s, n);}
else if (strcmp(dtype, SC_SHORT_S) == 0)
{SC_TRANS_DATA(short, pd, stype, s, n);}
else if (strcmp(dtype, SC_CHAR_S) == 0)
{SC_TRANS_DATA(char, pd, stype, s, n);};
if (flag && (ret == 1))
SFREE(s);
return(ret);}
/*--------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------*/
/* SC_SIZEOF - a string driven sizeof operator if you can't do any better */
int SC_sizeof(s)
char *s;
{int nb;
if (strcmp(s, SC_DOUBLE_S) == 0)
nb = sizeof(double);
else if (strcmp(s, SC_FLOAT_S) == 0)
nb = sizeof(float);
else if (strcmp(s, SC_INTEGER_S) == 0)
nb = sizeof(int);
else if (strcmp(s, SC_LONG_S) == 0)
nb = sizeof(long);
else if (strcmp(s, SC_SHORT_S) == 0)
nb = sizeof(short);
else if (strcmp(s, SC_CHAR_S) == 0)
nb = sizeof(char);
else if (strchr(s, '*') != NULL)
nb = sizeof(char *);
else
nb = 0;
return(nb);}
/*--------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------*/
/* SC_FPRINTF - Wrapper for fprintf for handling null file pointers */
#ifdef PCC
int SC_fprintf(fp, fmt, va_alist)
FILE *fp;
char *fmt;
va_dcl
#endif
#ifdef ANSI
int SC_fprintf(FILE *fp, char *fmt, ...)
#endif
{int ret;
ret = 0;
if (fp != NULL)
{SC_VA_START(fmt);
ret = SC_VFPRINTF(fp, fmt);
SC_VA_END;};
FLUSH_ON(fp, NULL);
return(ret);}
/*--------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------*/
/* SC_SETVBUF - a dummy setvbuf for the marginal systems */
int SC_setvbuf(stream, buf, type, size)
FILE *stream;
char *buf;
int type;
size_t size;
{int ret;
#ifdef BBN
ret = TRUE;
#else
#ifdef MAC
if (stream == stdout)
ret = FALSE;
else
ret = setvbuf(stream, buf, type, size);
#else
#ifdef IBMMP
SC_ibm_non_ANSI_compliant = TRUE;
#else
ret = setvbuf(stream, buf, type, size);
#endif
#endif
#endif
return(ret);}
/*--------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------*/
/* SC_SETBUF - controlled version of C setbuf for marginal systems */
void SC_setbuf(fp, bf)
FILE *fp;
char *bf;
{
#ifndef MAC
#ifdef IBMMP
SC_ibm_non_ANSI_compliant = TRUE;
#else
if (bf == NULL)
io_setvbuf(fp, NULL, _IONBF, 0);
else
io_setvbuf(fp, bf, _IOFBF, SC_arrlen(bf));
#endif
#endif
return;}
/*--------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------*/
/* SC_FFLUSH - controlled version of C fflush for marginal systems */
int SC_fflush(fp)
FILE *fp;
{
#ifdef IBMMP
/*
if (SC_ibm_non_ANSI_compliant)
mpc_flush(1);
*/
#endif
return(0);}
/*--------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------*/
/* SC_MACHINE_PRECISION - return a decimal number representing the
* - fractional precision of floating point arithmetic
* - on the current machine
*/
double SC_machine_precision()
{int i;
double x, y;
double val[4];
val[0] = 3.0;
val[1] = exp(1.0);
val[2] = sqrt(2.0);
val[3] = asin(1.0);
x = 1.0;
for (i = 0; i < 4; i++)
x *= val[i];
#if 0
for (i = 0; i < 4; i++)
x += val[i]*1.0e-8;
for (i = 0; i < 4; i++)
x -= val[i]*1.0e-8;
#endif
for (i = 0; i < 4; i++)
x /= val[i];
x = ABS(1.0 - x);
y = log10(x);
y = ceil(y);
x = pow(10.0, y);
return(x);}
/*--------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------*/
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