removed code without effect
time_t represents the number of seconds since the birth of unix.
to deal with microseconds and friends, use
a) gettimeofday
b) struct timeval
/** * test/demos/parser/parser.yy * Copyright (C) 2008 Markus Broeker */%{ #include <stdio.h> #include <ctype.h> int regs[26]; int base; int yyerror(); int yylex();%}%start list%token DIGIT LETTER%left MINUS PLUS MUL DIV%left UMINUS%%list: /* empty */ | list stat '\n' | list error '\n' { yyerrok; };stat: expr { (void) printf( "RESULT: %d\n", $1 ); } | LETTER '=' expr { regs[$1] = $3; } ;expr: '(' expr ')' { $$ = $2; } | expr PLUS expr { $$ = $1 + $3; } | expr MINUS expr { $$ = $1 - $3; } | expr MUL expr { $$ = $1 * $3; } | expr DIV expr { $$ = $1 / $3; } | MINUS expr %prec UMINUS { $$ = -$2; } | LETTER { $$ = regs[$1]; } | number ;number: DIGIT { $$ = $1; base = ($1==0) ? 8 : 10; } | number DIGIT { $$ = base * $1 + $2; } ;%%int yyerror(){ printf("ERROR\n"); return 0;}int yywrap(){ return 1;}