base/base.c


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#include "base/base.h"
#include "stddef.h"

/**
 * Helper function to parse strings to int using ascii codes
 * */
local_internal u64
parse_u64(char *buf, size_t len)
{
  u64 value = 0;

  for (
    size_t buffer_idx = 0;
    buffer_idx < len;
    ++buffer_idx)
  {
    char c = buf[buffer_idx];
    if (c < '0' || c > '9')
    {
      break;
    }
    value = value * 10 + (c - '0');
  }

  return value;
}

/*
 * is_numeric - Check if a string contains only digits
 * @s: String to check
 *
 * Return: 1 if string contains only numeric characters, 0 otherwise
 */
local_internal b8
is_numeric(char *s)
{
  for (; *s; ++s)
  {
    if (*s < '0' || *s > '9')
    {
      return 0;
    }
  }
  return 1;
}

local_internal b8
compare_string(const char *c1, const char *c2)
{
  if (sizeof(c1) != sizeof(c2))
  {
    return -1;
  }

  for (
    u64 word_idx = 0;
    word_idx <= sizeof(*c1);
    ++word_idx)
  {
    if (*c1 != *c2)
    {
      return -1;
    }
    ++c1;
    ++c2;
  }

  return 0;
}