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Saturday, 23 February 2019

Program to count the no of ‘scanf’ and ‘printf’ statements in a C program. Replace them with ‘readf’ and ‘writef’ statements respectively. | Compiler Design Programs | Lex Programs

Compiler Design Program Lab :

int pc=0, sc=0;
“printf” { fprintf(yyout,”writef”); pc++;}
“scanf” { fprintf(yyout,”readf”); sc++;}
int yywrap()
return 1;
main(int argc, char *argv[])
 printf(“Usage: <./a.out> <sourcefile> <destn file>\n”);
 printf(“No of printf statements = %d\n No of scanf
statements=%d\n”, pc, sc);


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