gen_large_switchcase.py

#!/usr/bin/env python3
# Copyright 2015 The Emscripten Authors.  All rights reserved.
# Emscripten is available under two separate licenses, the MIT license and the
# University of Illinois/NCSA Open Source License.  Both these licenses can be
# found in the LICENSE file.

import sys

num_cases = int(sys.argv[1])
cases = ''
i = 1
incr = 1
for _ in range(0, num_cases):
  cases += '  case ' + str(i) + ': return "' + str(i) + str(i) + str(i) + '";\n'
  i += incr
  incr = (incr % 5) + 1

print('''#include <stdio.h>
#include <stdlib.h>
#include <emscripten.h>

const char *foo(int x)
{
  switch(x)
  {
''' + cases + '''
  default: return "default";
  }
}

int main()
{
  for(int i = 0; i < ''' + str((num_cases + 99) // 100) + '''; ++i)
    printf("%d: %s\\n", i*301, foo(i*301));
  printf("Success!\\n");
}''')