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1·SIGFPE - Arithmetic exception, integer divided by 0, or floating-point exception.

SIGFPE—算术异常、整数被零除或浮点异常。

2·Gdb indicates that the program gets an arithmetic exception at line 7 and usefully prints out the line and the values of the arguments to the wib function.

gdb指出在程序第7行发生一个算术异常，通常它会打印这一行以及wib函数的自变量值。

3·The compiler generated an exception while doing constant arithmetic during compilation.

期间 ，编译器在执行常数算法时生成异常。