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little endian no MIT float byte swap

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This commit is contained in:
Jeff Hill
1994-12-07 00:31:13 +00:00
parent 1657a97783
commit 94c6314dc9
2 changed files with 60 additions and 15 deletions
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64
src/ca/convert.c
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@@ -1556,7 +1556,7 @@ void htonf(float *pHost, float *pNet)
pIEEE->mant = mant;
pIEEE->exp = exp;
pIEEE->sign = sign;
*(ca_uint32_t *)pIEEE = ntohl(*(ca_uint32_t *)pIEEE);
*(ca_uint32_t *)pIEEE = htonl(*(ca_uint32_t *)pIEEE);
}
@@ -1570,7 +1570,7 @@ void ntohf(float *pNet, float *pHost)
struct ieeeflt *pIEEE = pNet;
long exp,mant2,mant1,sign;
*(ca_uint32_t *)pIEEE = htonl(*(ca_uint32_t *)pIEEE);
*(ca_uint32_t *)pIEEE = ntohl(*(ca_uint32_t *)pIEEE);
if( (short) pIEEE->exp > EXPMAXMIT + IEEE_SB){
sign = pIEEE->sign;
exp = EXPMAXMIT + MIT_SB;
@@ -1600,24 +1600,68 @@ void ntohf(float *pNet, float *pHost)
#ifndef CA_FLOAT_MIT
void htond(double *IEEEhost, double *IEEEnet)
/*
* htond ()
* performs only byte swapping
*/
void htond (double *IEEEhost, double *IEEEnet)
{
*IEEEnet = *IEEEhost;
ca_uint32_t *pHost = (ca_uint32_t *) IEEEhost;
ca_uint32_t *pNet = (ca_uint32_t *) IEEEnet;
ca_uint32_t tmp;
/*
* byte swap to net order
* (assume that src and dest ptrs
* may be identical)
*/
tmp = pHost[0];
pNet[0] = htonl (pHost[1]);
pNet[1] = htonl (tmp);
}
void ntohd(double *IEEEnet, double *IEEEhost)
/*
* ntohd ()
* performs only byte swapping
*/
void ntohd (double *IEEEnet, double *IEEEhost)
{
*IEEEhost = *IEEEnet;
ca_uint32_t *pHost = (ca_uint32_t *) IEEEhost;
ca_uint32_t *pNet = (ca_uint32_t *) IEEEnet;
ca_uint32_t tmp;
/*
* byte swap to net order
* (assume that src and dest ptrs
* may be identical)
*/
tmp = pNet[0];
pHost[0] = ntohl (pNet[1]);
pHost[1] = htonl (tmp);
}
void ntohf(float *IEEEnet, float *IEEEhost)
/*
* ntohf ()
* performs only byte swapping
*/
void ntohf (float *IEEEnet, float *IEEEhost)
{
*IEEEhost = *IEEEnet;
ca_uint32_t *pHost = (ca_uint32_t *) IEEEhost;
ca_uint32_t *pNet = (ca_uint32_t *) IEEEnet;
*pHost = ntohl (*pNet);
}
void htonf(float *IEEEhost, float *IEEEnet)
/*
* htonf ()
* performs only byte swapping
*/
void htonf (float *IEEEhost, float *IEEEnet)
{
*IEEEnet = *IEEEhost;
ca_uint32_t *pHost = (ca_uint32_t *) IEEEhost;
ca_uint32_t *pNet = (ca_uint32_t *) IEEEnet;
*pNet = htonl (*pHost);
}
#endif /* not CA_MIT_FLOAT*/

11
src/ca/net_convert.h
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@@ -63,9 +63,10 @@
# endif
#endif
#ifndef MIT_FLOAT
#define htond(IEEEhost, IEEEnet) (*(IEEEnet) = *(IEEEhost))
#define ntohd(IEEEnet, IEEEhost) (*(IEEEhost) = *(IEEEnet))
#define htonf(IEEEhost, IEEEnet) (*(IEEEnet) = *(IEEEhost))
#define ntohf(IEEEnet, IEEEhost) (*(IEEEhost) = *(IEEEnet))
#if !defined(MIT_FLOAT) && !defined(CA_LITTLE_ENDIAN)
#define htond(IEEEhost, IEEEnet) (*(double *)(IEEEnet) = *(double *)(IEEEhost))
#define ntohd(IEEEnet, IEEEhost) (*(double *)(IEEEhost) = *(double *)(IEEEnet))
#define htonf(IEEEhost, IEEEnet) (*(float *)(IEEEnet) = *(float *)(IEEEhost))
#define ntohf(IEEEnet, IEEEhost) (*(float *)(IEEEhost) = *(float *)(IEEEnet))
#endif