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This article is to share with you about AIX xlc compilation parameters setting local variable initialization is how, the editor feels very practical, so share with you to learn, I hope you can get something after reading this article, say no more, follow the editor to have a look.

The compiler initializes the global and static variables to 0 by default in the CAccord + program. Local variables have no default values, and the allocated memory space retains the original meaningless values.

In a lot of old code, initialization and use are not standardized, resulting in very prone to exceptions.

To reduce the probability of exceptions, local variables can also be initialized by default values through the compilation parameters of xlc.

Help from xlc:

-qinitauto= |-qnoinitauto

Initializes each byte or word of storage for

Automatic variables to the specified hexadecimal

Value. This generates extra code and

Should only be used for error determination.

Therefore, you can simply add-qinitauto=00 to the compilation option.

The above is how AIX's xlc compilation parameters set local variable initialization. The editor believes that there are some knowledge points that we may see or use in our daily work. I hope you can learn more from this article. For more details, please follow the industry information channel.

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