scc

simple C compiler
git clone git://git.2f30.org/scc
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gets.c (208B)

      1 #include <stdio.h>
      2 #undef gets
      3 
      4 char *
      5 gets(char *s)
      6 {
      7 	int ch;
      8 	char *t = s;
      9 
     10 	while ((ch = getc(stdin)) != EOF && ch != '\n')
     11 		*t++ = ch;
     12 	if (ch == EOF && s == t)
     13 		return NULL;
     14 	*t = '\0';
     15 
     16 	return s;
     17 }