free memory allocated by mpf_get_str

[LiuEmma]

Hi, 

 

I encountered a problem when I use mpg_get_str. 

 

ch = mpf_get_str(NULL,&exp,10,MAX_DIGITS + 1,temp);

 

According to the manual, If str is NULL, the result string is allocated using the current allocation function. So I think I should free the memory allocated by this function and I tried free(ch) and delete ch, but failed. It always said data abort. 

 

Would anyone tell me the correct way to free it?

 

Thanks!

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