go-string-to-int-array.c
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/* go-string-to-int-array.c -- convert a string to an array of ints in Go.
Copyright 2010 The Go Authors. All rights reserved.
Use of this source code is governed by a BSD-style
license that can be found in the LICENSE file. */
#include "runtime.h"
#include "go-alloc.h"
#include "go-string.h"
#include "array.h"
#include "arch.h"
#include "malloc.h"
struct __go_open_array
__go_string_to_int_array (String str)
{
size_t c;
const unsigned char *p;
const unsigned char *pend;
uintptr mem;
uint32_t *data;
uint32_t *pd;
struct __go_open_array ret;
c = 0;
p = str.str;
pend = p + str.len;
while (p < pend)
{
int rune;
++c;
p += __go_get_rune (p, pend - p, &rune);
}
if (c > MaxMem / sizeof (uint32_t))
runtime_throw ("out of memory");
mem = runtime_roundupsize (c * sizeof (uint32_t));
data = (uint32_t *) runtime_mallocgc (mem, 0, FlagNoScan | FlagNoZero);
p = str.str;
pd = data;
while (p < pend)
{
int rune;
p += __go_get_rune (p, pend - p, &rune);
*pd++ = rune;
}
if (mem > (uintptr) c * sizeof (uint32_t))
__builtin_memset (data + c, 0, mem - (uintptr) c * sizeof (uint32_t));
ret.__values = (void *) data;
ret.__count = c;
ret.__capacity = (intgo) (mem / sizeof (uint32_t));
return ret;
}