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On 4/26/2013 5:29 AM, Eric Blake wrote:
On 04/26/2013 02:43 AM, Sebastian Huber wrote:Use one memset() to initialize everything to zero. Set non-zero fields in a second step. There is only a small runtime overhead, but the code size is greatly reduced. This change assumes the NULL pointer and '\0' are encoded as zero bits.'\0' is required to be all zero bits by C99; no assumption required. NULL is allowed to be encoded as non-zero bits, but such systems are extremely rare, and I don't know of any newlib target that violates the assumption (that is, we have other code in newlib that assumes a memset to 0 correctly initializes null pointer values).
Is that a blessing to commit this Eric? -- Joel Sherrill, Ph.D. Director of Research & Development joel.sherrill@OARcorp.com On-Line Applications Research Ask me about RTEMS: a free RTOS Huntsville AL 35805 Support Available (256) 722-9985
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