1. if tmp == NULL, but proc.error() returns 0, you will overwrite 'err' with 0. Which is wrong. 2. the MySQL coding stile is 'var= val' (note the space after var) 3. please use my_strerror() instead of strerror().
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1. if tmp == NULL, but proc.error() returns 0, you will overwrite 'err' with 0. Which is wrong.
2. the MySQL coding stile is 'var= val' (note the space after var)
3. please use my_strerror() instead of strerror().