114 lines
2.5 KiB
C
114 lines
2.5 KiB
C
#include "types.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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/**
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* Safely print first argument provided to the program. Determine its meaning.
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*
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* @param argc total number of arguments provided to the program
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*
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* @param argv array/vector of arguments
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*/
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void print_first_argument(int argc, char *argv[]) {
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if (argc < 1) {
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return;
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}
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printf("%s\n", argv[0]);
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return;
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}
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/**
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* Safely print first 4 arguments provided to the program while converting them
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* to their corresponding data type.
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*
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* ./main <int> <double> <string>
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*
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* To convert <string> to <int>, use function atoi()
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* (https://cplusplus.com/reference/cstdlib/atoi/)
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*
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* To convert <string> to <double>, use function atof()
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* (https://cplusplus.com/reference/cstdlib/atof/)
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*
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* Use the following commmand to execute your program with set of arguments:
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*
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* ./main 42 13.37 hello_program
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*
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* @param argc total number of arguments provided to the program
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*
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* @param argv array/vector of arguments
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*/
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void print_parse_arguments(int argc, char *argv[]) {
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int a;
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double b;
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int s = (argc<4)?argc:4;
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for (int i = 0; i < s; ++i) {
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switch (i) {
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case 1:
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a = atoi(argv[i]);
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printf("%d\n",a);
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break;
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case 2:
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b = atof(argv[i]);
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printf("%.3f\n",b);
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break;
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default:
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printf("%s\n",argv[i]);
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break;
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}
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}
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return;
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}
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/**
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* Safely print ALL arguments provided to the program without any conversion.
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*
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* ./main <int> <double> <string>
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*
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* @param argc total number of arguments provided to the program
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*
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* @param argv array/vector of arguments
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*/
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void print_all_arguments(int argc, char *argv[]) {
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for (int i = 0; i < argc; ++i) {
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printf("%s\n", argv[i]);
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}
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return;
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}
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/**
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* Safely print the largest argument
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*
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* ./main <int> <double> <string>
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*
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* @param argc total number of arguments provided to the program
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*
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* @param argv array/vector of arguments
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*/
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void print_largest_argument(int argc, char *argv[]) {
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char *c = "";
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for (int i = 0; i < argc; ++i) {
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if(strlen(argv[i]) > strlen(c)){
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c = argv[i];
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}
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}
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printf("Largest argument: %s",c);
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return;
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}
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#ifndef TEST_BUILD
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int main(int argc, char *argv[]) {
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printf("\n-- print_first_argument --\n");
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print_first_argument(argc, argv);
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printf("\n-- print_parse_arguments --\n");
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print_parse_arguments(argc, argv);
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printf("\n-- print_all_arguments --\n");
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print_all_arguments(argc, argv);
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printf("\n-- print_largest_argument --\n");
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print_largest_argument(argc, argv);
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return 0;
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}
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#endif
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