Null-terminated string: Difference between revisions

Revision as of 01:15, 31 October 2007

Revision as of 01:18, 31 October 2007

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== C String header ==

The <cstring> header and its functions are the ideal way to work with C strings. Typical operator use with C strings will frequently create problems with pointers. As an example, using the = operator between two C strings does not copy the values in the array but copies a pointer to thisthe array. This is incorrect usage for most typical applications.

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To copy a C string correctly, the following format could be used

<code>memcpy(CstringDst, CstringSrc, strlen(CstringSrc) + 1);</code>

Where CstringDst is the destination C string to be copied into and CstringSrc is the source of the C string. The last argument will set the length of the destination C array. It will set this length to the length of the source plus 1 to account for the terminating character.

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The functions included in <cstring> are as follows:

'''Copying:'''