Declaring a char array

Projects Programming
1

hello,

is this:

  char msg[64];
  msg[0] = '\0';

the same as

char msg[64] = "";

?

I want to null terminate my char declaration (msg) before I start concatenating other chars into it.

Thanks

2

Yes, those two are functionally identical.

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4

Note that if msg is an automatic variable (i.e., a non-static local variable), it will not be filled with zeroes in the first case. Only the first char will have a value of zero (after the msg[0] = '\0'; statement). In the second case, the compiler will fill the entire array with zeroes.

Whether this matters to your application is up to you.

5

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