length of a string

General and Gameplay Programming Programming

4 comments, last by hello_there 20 years, 4 months ago

122

Author

November 27, 2003 08:25 PM

Say you have a function something like this void Func(char * File) How would you get the length of File.

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November 27, 2003 08:30 PM

If you''ve null-terminated the char*, you can loop through for-style, and keep a counter, terminating the loop when you hit null.

11,840

November 27, 2003 08:30 PM

Assuming a C-style null-terminated string:
strlen(File);

122

Author

November 27, 2003 08:41 PM

say i passed "Name" to the function would that be a NULL terminated string.

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11,840

November 27, 2003 09:07 PM

Depends on the language, and how you''re actually calling it.

For example (valid in C, invalid in C++):

char name[4] = "Name"; /* No room for terminating null */Func(name);

This would be non-null terminated.

However, just calling Func("Name"); should give you a null-terminated string in both C and C++.

122

Author

November 27, 2003 09:11 PM

cool got it working thanks

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Reticulating splines