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fix param interface (#5797)

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* param: fix bug when param value is changed to 'zero' for the first time, it won't be saved.

* param: revert incorrectly removed code.
This commit is contained in:
Henry Zhang 2016-11-06 21:45:17 +08:00 committed by Lorenz Meier
parent 53e0bc5f12
commit 309c256e9e
1 changed files with 3 additions and 2 deletions
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5
src/modules/systemlib/param/param.c
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@ -543,6 +543,7 @@ param_set_internal(param_t param, const void *val, bool mark_saved, bool notify_
.val.p = NULL,
.unsaved = false
};
params_changed = true;
/* add it to the array and sort */
utarray_push_back(param_values, &buf);
@ -556,12 +557,12 @@ param_set_internal(param_t param, const void *val, bool mark_saved, bool notify_
switch (param_type(param)) {
case PARAM_TYPE_INT32:
params_changed = s->val.i != *(int32_t *)val;
params_changed = params_changed || s->val.i != *(int32_t *)val;
s->val.i = *(int32_t *)val;
break;
case PARAM_TYPE_FLOAT:
params_changed = fabsf(s->val.f - * (float *)val) > FLT_EPSILON;
params_changed = params_changed || fabsf(s->val.f - * (float *)val) > FLT_EPSILON;
s->val.f = *(float *)val;
break;