E******T
发帖数: 59 | 1 float **x;
x = (float **)malloc(k*sizeof(float *)); /* Make space for the data */
in this example, sizeof(float *) and sizeof(float) has any difference? the
denotation * means a pointer?
Thanks | t****t
发帖数: 6806 | 2 yes, * means pointer... so you have totally no idea about C. better grab an
introductory book and read a bit.
【在 E******T 的大作中提到】
: float **x;
: x = (float **)malloc(k*sizeof(float *)); /* Make space for the data */
: in this example, sizeof(float *) and sizeof(float) has any difference? the
: denotation * means a pointer?
: Thanks
| M**u
发帖数: 10158 | 3 这个tough个啥啊
sizeof (float *) 要存一个指针大小
sizeof (float)要存一个float大小
【在 E******T 的大作中提到】
: float **x;
: x = (float **)malloc(k*sizeof(float *)); /* Make space for the data */
: in this example, sizeof(float *) and sizeof(float) has any difference? the
: denotation * means a pointer?
: Thanks
|
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