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AP_Param: make ptype in first() and next() optional

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This commit is contained in:
Andrew Tridgell 2012-02-12 19:18:24 +11:00
parent e01af5885f
commit 5d03f13aa5
1 changed files with 14 additions and 4 deletions
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12
libraries/AP_Common/AP_Param.cpp
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@ -558,7 +558,9 @@ AP_Param *AP_Param::first(uint32_t *token, enum ap_var_type *ptype)
if (_num_vars == 0) {
return NULL;
}
if (ptype != NULL) {
*ptype = (enum ap_var_type)pgm_read_byte(&_var_info[0].type);
}
return (AP_Param *)(pgm_read_pointer(&_var_info[0].ptr));
}
@ -588,7 +590,9 @@ AP_Param *AP_Param::next_group(uint8_t vindex, const struct GroupInfo *group_inf
if (*found_current) {
// got a new one
(*token) = ((uint32_t)GROUP_OFFSET(group_base, i, group_shift)<<16) | vindex;
if (ptype != NULL) {
*ptype = (enum ap_var_type)type;
}
return (AP_Param*)(pgm_read_pointer(&_var_info[vindex].ptr) + pgm_read_word(&group_info[i].offset));
}
if (GROUP_OFFSET(group_base, i, group_shift) == (*token)>>16) {
@ -625,7 +629,9 @@ AP_Param *AP_Param::next(uint32_t *token, enum ap_var_type *ptype)
} else {
// found the next one
(*token) = i;
if (ptype != NULL) {
*ptype = (enum ap_var_type)type;
}
return (AP_Param *)(pgm_read_pointer(&_var_info[i].ptr));
}
}
@ -637,6 +643,10 @@ AP_Param *AP_Param::next(uint32_t *token, enum ap_var_type *ptype)
AP_Param *AP_Param::next_scalar(uint32_t *token, enum ap_var_type *ptype)
{
AP_Param *ap;
while ((ap = next(token, ptype)) != NULL && *ptype > AP_PARAM_FLOAT) ;
enum ap_var_type type;
while ((ap = next(token, &type)) != NULL && type > AP_PARAM_FLOAT) ;
if (ap != NULL && ptype != NULL) {
*ptype = type;
}
return ap;
}