scc

simple c99 compiler
git clone git://git.simple-cc.org/scc
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isascii.c (77B)

      1 #include <ctype.h>
      2 #undef isascii
      3 
      4 int
      5 isascii(int c)
      6 {
      7 	return c <= 0x7f;
      8 }