stdc 1.0.4

A minimal-abstraction Standard C Library implementation for Dart. Designed for C programmers to seamlessly use familiar functions like stdc.printf or stdc.sin.

example/stdc_example.dart

import 'package:stdc/math.dart';
import 'package:stdc/ctype.dart';
import 'package:stdc/string.dart';
import 'package:stdc/stdlib.dart';
import 'package:stdc/stdio.dart';
import 'package:stdc/time.dart';

void main() {
  print('--- stdc math.h examples ---');

  // Using sqrt
  var num = 16.0;
  print('sqrt($num) = ${stdc.sqrt(num)}');

  // Using pow
  var base = 2.0;
  var exp = 8.0;
  print('pow($base, $exp) = ${stdc.pow(base, exp)}');

  // Trigonometry
  var pi = 3.1415926535897932;
  print('sin(pi/2) = ${stdc.sin(pi / 2)}');

  // Absolute values
  print('abs(-42) = ${stdc.abs(-42)}');
  print('fabs(-3.14) = ${stdc.fabs(-3.14)}');

  // Ceil and floor
  print('ceil(2.3) = ${stdc.ceil(2.3)}');
  print('floor(2.8) = ${stdc.floor(2.8)}');
  print('');

  print('--- stdc ctype.h examples ---');
  
  // Character classification
  print('isalpha("A") = ${stdc.isalpha("A")}');
  print('isdigit("5") = ${stdc.isdigit("5")}');
  print('isspace(" ") = ${stdc.isspace(" ")}');
  print('ispunct("!") = ${stdc.ispunct("!")}');

  // Character conversion
  print('toupper("h") = ${stdc.toupper("h")}');
  print('tolower("G") = ${stdc.tolower("G")}');
  print('');

  print('--- stdc string.h examples ---');
  
  // String length and comparison
  print('strlen("hello") = ${stdc.strlen("hello")}');
  print('strcmp("apple", "banana") = ${stdc.strcmp("apple", "banana")}');
  
  // String searching
  print('strchr("hello", "e") = ${stdc.strchr("hello", "e")}');
  print('strstr("hello world", "world") = ${stdc.strstr("hello world", "world")}');
  
  // String manipulation (returning new strings)
  String buffer = "hello";
  buffer = stdc.strcat(buffer, " world");
  print('strcat result = "$buffer"');
  print('');

  print('--- stdc stdlib.h examples ---');
  print('atoi("42") = ${stdc.atoi("42")}');
  print('atof("3.14") = ${stdc.atof("3.14")}');
  
  stdc.srand(12345);
  print('rand() = ${stdc.rand()}');
  
  List<int> numbers = [5, 2, 9, 1, 5, 6];
  stdc.qsort(numbers, (a, b) => a.compareTo(b));
  print('qsort result = $numbers');
  print('');

  print('--- stdc time.h examples ---');
  int t = stdc.time();
  print('time() = $t');
  print('ctime(time()) = ${stdc.ctime(t)}');
  print('clock() = ${stdc.clock()} ms ticks since start');
  print('');

  print('--- stdc stdio.h examples ---');
  // Using puts
  stdc.puts("This is printed using puts()!");
  
  // Using printf
  stdc.printf("This is printed using printf()! Hello %s, number %d!\n", ["World", 100]);
  
  // Showing how sprintf plays well with Dart's print
  String formatted = stdc.sprintf("Hex format of 255 is 0x%X", [255]);
  print('Dart print() loves sprintf: $formatted');
}