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However, the call to copy src2 to dst2 fails because there is insufficient space available to copy the entire string, which consists of seven characters, to the destination buffer. As a result, r2 is assigned a nonzero value and dst2/0/ is set to "\0."
Users of the ISO/IEC TR 24731 functions are less likely to introduce a security flaw because the size of the destination buffer and the maximum number of characters to append must be specified. ISO/IEC TR 24731 functions also ensure null termination of the destination string.
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