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#### 10.2.13 K&R Symbols

Two other syntactic symbols can appear in old style, non-prototyped C code 1:

          1: int add_three_integers(a, b, c)
          2:      int a;
          3:      int b;
          4:      int c;
          5: {
          6:     return a + b + c;
          7: }

Here, line 2 is the first line in an argument declaration list and so is given the `knr-argdecl-intro` syntactic symbol. Subsequent lines (i.e. lines 3 and 4 in this example), are given `knr-argdecl` syntax.

#### Footnotes

[1] a.k.a. K&R C, or Kernighan & Ritchie C