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QccBinaryCharToInt, QccBinaryIntToChar, QccBinaryCharToFloat, QccBinaryFloatToChar
- convert integers and floating-point values into character arrays
#include "libQccPack.h"
#define QCC_INT_SIZE 4
int QccBinaryCharToInt(const
unsigned char *ch, unsigned int *val);
int QccBinaryIntToChar(unsigned
int val, unsigned char *ch);
int QccBinaryCharToFloat(const unsigned
char *ch, float *val);
int QccBinaryFloatToChar(float val, unsigned char
*ch);
All binary-valued numbers stored to files by QccPack
have their most-significant byte (MSB) written first. However, whether the
host computer stores binary values in MSB-first (Big Endian) or LSB-first
(Little Endian) format depends on the architecture of machine. These routines
convert between the MSB-first values used in QccPack files and int or
float values with the host byte order. Thus, files written by QccPack
programs should then be portable across different architectures.
For each
of the routines, ch is an array of characters containing QCC_INT_SIZE
bytes.
QccBinaryCharToInt() converts a MSB-first QCC_INT_SIZE-length character
array to an int. QccBinaryIntToChar() converts an int to a MSB-first QCC_INT_SIZE-length
character array.
QccBinaryCharToFloat() converts a MSB-first QCC_INT_SIZE-length
character array to an float. QccBinaryFloatToChar() converts an float to
a MSB-first QCC_INT_SIZE-length character array.
QccPack(3)
These routines rely on int and float values being QCC_INT_SIZE (four)
bytes long (i.e., 32-bit values). Although it seems that this is the case
for modern computer systems, some 64-bit systems might use longer values.
Copyright (C) 1997-2021 James E. Fowler
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