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implement Libc;
include "libc.m";
islx(c: int): int
{
return c >= 'a' && c <= 'f';
}
isux(c: int): int
{
return c >= 'A' && c <= 'F';
}
isalnum(c: int): int
{
return isalpha(c) || isdigit(c);
}
isalpha(c: int): int
{
return islower(c) || isupper(c);
}
isascii(c: int): int
{
return (c&~16r7f) == 0;
}
iscntrl(c: int): int
{
return c == 16r7f || (c&~16r1f) == 0;
}
isdigit(c: int): int
{
return c >= '0' && c <= '9';
}
isgraph(c: int): int
{
return c >= '!' && c <= '~';
}
islower(c: int): int
{
return c >= 'a' && c <= 'z';
}
isprint(c: int): int
{
return c >= ' ' && c <= '~';
}
ispunct(c: int): int
{
return isascii(c) && !iscntrl(c) && !isspace(c) && !isalnum(c);
}
isspace(c: int): int
{
return c == ' ' || c == '\t' || c == '\n' || c == '\r' || c == '\f' || c == '\v';
}
isupper(c: int): int
{
return c >= 'A' && c <= 'Z';
}
isxdigit(c: int): int
{
return isdigit(c) || islx(c) || isux(c);
}
tolower(c: int): int
{
if(isupper(c))
return c+'a'-'A';
return c;
}
toupper(c: int): int
{
if(islower(c))
return c+'A'-'a';
return c;
}
toascii(c: int): int
{
return c&16r7f;
}
strchr(s: string, n: int): int
{
l := len s;
for(i := 0; i < l; i++)
if(s[i] == n)
return i;
return -1;
}
strrchr(s: string, n: int): int
{
l := len s;
for(i := l-1; i >= 0; i--)
if(s[i] == n)
return i;
return -1;
}
strncmp(s1: string, s2: string, n: int): int
{
l1 := len s1;
l2 := len s2;
for(i := 0; i < l1 && i < l2 && i < n; i++)
if(s1[i] != s2[i])
return s1[i]-int s2[i];
return l1-l2;
}
abs(n: int): int
{
if(n < 0)
return -n;
return n;
}
min(m: int, n: int): int
{
if(m < n)
return m;
return n;
}
max(m: int, n: int): int
{
if(m > n)
return m;
return n;
}
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