1 /* n_22.c:  Tokenization of preprocessing number.   */
2 
3 #include    "defs.h"
4 
5 #define str( a)     # a
6 #define xstr( a)    str( a)
7 #define EXP         1
8 
main(void)9 main( void)
10 {
11     fputs( "started\n", stderr);
12 
13 /* 22.1:    12E+EXP is a preprocessing number, EXP is not expanded. */
14     assert( strcmp( xstr( 12E+EXP), "12E+EXP") == 0);
15 
16 /* 22.2:    .2e-EXP is also a preprocessing number. */
17     assert( strcmp( xstr( .2e-EXP), ".2e-EXP") == 0);
18 
19 /* 22.3:    + or - is allowed only following E or e, 12+EXP is not a
20         preprocessing number.   */
21     assert( strcmp( xstr( 12+EXP), "12+1") == 0);
22 
23     fputs( "success\n", stderr);
24     return  0;
25 }
26 
27