int main( int argc, char* argv) {
char* infix = "5 * ( 2 + 10 ) / ( 8 + 2 ) ";
printf("This is the infix %s\n", infix);
char* postfix = in2post(infix);
printf("This is the post fix %s\n", postfix);
int result = postEval(postfix);
printf("This is the answer to the equation %d\n", result);
return 0;
}
/**Functions**/
int main(int argc, char *argv[]){
/*argument detection*/
if(argc == 3){
cInput = argv[1];
cOutput = argv[2];
}
else
printf("Proceed with default setting...\n");
/*Open input/output file*/
fpInput = fpOutput = NULL;
if((fpInput = fopen(cInput, "r")) == NULL){
printf("Error: failed to open input file.\n");
exit(0);
}
if((fpOutput = fopen(cOutput, "w")) == NULL){
printf("Error: failed to open output file.\n");
exit(1);
}
/*Algorithm begins here*/
int iHowMany = 0;
char input[SIZE], output[SIZE];
fscanf(fpInput, " %d\n", &iHowMany);
for(int i=1; i<=iHowMany; i++){
fgets(input, SIZE, fpInput);
input[strlen(input)-1]='\0'; //neglect the newline character
in2post(input, output);
fprintf(fpOutput, "\n");
}
/*Program ended: close files*/
fclose(fpInput);
fclose(fpOutput);
fpInput = fpOutput = NULL;
return 0;
}