stdc 1.0.5

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/stdc.dart';

void mathEg() {
  print('--- stdc math.h examples ---');
  var num = 16.0;
  print('sqrt($num) = ${stdc.sqrt(num)}');

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

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

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

  print('ceil(2.3) = ${stdc.ceil(2.3)}');
  print('floor(2.8) = ${stdc.floor(2.8)}\n');
}

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

  print('toupper("h") = ${stdc.toupper("h")}');
  print('tolower("G") = ${stdc.tolower("G")}\n');
}

void stringEg() {
  print('--- stdc string.h examples ---');
  print('strlen("hello") = ${stdc.strlen("hello")}');
  print('strcmp("apple", "banana") = ${stdc.strcmp("apple", "banana")}');
  
  print('strchr("hello", "e") = ${stdc.strchr("hello", "e")}');
  print('strstr("hello world", "world") = ${stdc.strstr("hello world", "world")}');
  
  String buffer = "hello";
  buffer = stdc.strcat(buffer, " world");
  print('strcat result = "$buffer"\n');
}

void stdlibEg() {
  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\n');
}

void timeEg() {
  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\n');
}

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

void assertEg() {
  print('--- stdc assert.h examples ---');
  try {
    print('Calling stdc.assert_(true)');
    stdc.assert_(true);
    print('Calling stdc.assert_(false, "This should fail")');
    stdc.assert_(false, "This should fail");
  } catch (e) {
    print('Assertion caught: $e');
  }
  print('');
}

void limitsEg() {
  print('--- stdc limits.h examples ---');
  print('CHAR_BIT = ${stdc.CHAR_BIT}');
  print('INT_MAX = ${stdc.INT_MAX}');
  print('INT_MIN = ${stdc.INT_MIN}');
  print('LONG_MAX = ${stdc.LONG_MAX}\n');
}

void floatEg() {
  print('--- stdc float.h examples ---');
  print('FLT_DIG = ${stdc.FLT_DIG}');
  print('FLT_MAX = ${stdc.FLT_MAX}');
  print('DBL_DIG = ${stdc.DBL_DIG}');
  print('DBL_MAX = ${stdc.DBL_MAX}\n');
}

void errnoEg() {
  print('--- stdc errno.h examples ---');
  print('Initial errno = ${stdc.errno}');
  
  // Simulating an error
  stdc.errno = stdc.EDOM;
  print('After simulating domain error, errno = ${stdc.errno}');
  
  // Standard error macros
  print('EDOM = ${stdc.EDOM}');
  print('ERANGE = ${stdc.ERANGE}\n');
}

void main() {
  mathEg();
  ctypeEg();
  stringEg();
  stdlibEg();
  timeEg();
  stdioEg();
  
  // New headers introduced in 1.0.5
  assertEg();
  limitsEg();
  floatEg();
  errnoEg();
}