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package libc
// 7.22 General utilities
when ODIN_OS == "windows" {
foreign import libc "system:libucrt.lib"
} else {
foreign import libc "system:c"
}
when ODIN_OS == "windows" {
RAND_MAX :: 0x7fff;
@(private="file")
@(default_calling_convention="c")
foreign libc {
___mb_cur_max_func :: proc() -> int ---;
}
MB_CUR_MAX :: #force_inline proc() -> size_t {
return size_t(___mb_cur_max_func());
}
}
when ODIN_OS == "linux" {
RAND_MAX :: 0x7fffffff;
// GLIBC and MUSL only
@(private="file")
@(default_calling_convention="c")
foreign libc {
__ctype_get_mb_cur_max :: proc() -> size_t ---;
}
MB_CUR_MAX :: #force_inline proc() -> size_t {
return __ctype_get_mb_cur_max();
}
}
// C does not declare what these values should be, as an implementation is free
// to use any two distinct values it wants to indicate success or failure.
// However, nobody actually does and everyone appears to have agreed upon these
// values.
EXIT_SUCCESS :: 0;
EXIT_FAILURE :: 1;
// C does not declare which order 'quot' and 'rem' should be for the divide
// structures. An implementation could put 'rem' first. However, nobody actually
// does and everyone appears to have agreed upon this layout.
div_t :: struct { quot, rem: int, }
ldiv_t :: struct { quot, rem: long, }
lldiv_t :: struct { quot, rem: longlong, }
@(default_calling_convention="c")
foreign libc {
// 7.22.1 Numeric conversion functions
atof :: proc(nptr: cstring) -> double ---;
atoi :: proc(nptr: cstring) -> int ---;
atol :: proc(nptr: cstring) -> long ---;
atoll :: proc(nptr: cstring) -> longlong ---;
strtod :: proc(nptr: cstring, endptr: ^^char) -> double ---;
strtof :: proc(nptr: cstring, endptr: ^^char) -> float ---;
strtol :: proc(nptr: cstring, endptr: ^^char, base: int) -> long ---;
strtoll :: proc(nptr: cstring, endptr: ^^char, base: int) -> longlong ---;
strtoul :: proc(nptr: cstring, endptr: ^^char, base: int) -> ulong ---;
strtoull :: proc(nptr: cstring, endptr: ^^char, base: int) -> ulonglong ---;
// 7.22.2 Pseudo-random sequence generation functions
rand :: proc() -> int ---;
srand :: proc(seed: uint) ---;
// 7.22.3 Memory management functions
aligned_alloc :: proc(aligment, size: size_t) -> rawptr ---;
calloc :: proc(nmemb, size: size_t) -> rawptr ---;
free :: proc(ptr: rawptr) ---;
malloc :: proc(size: size_t) -> rawptr ---;
realloc :: proc(ptr: rawptr, size: size_t) -> rawptr ---;
// 7.22.4 Communication with the environment
abort :: proc() -> ! ---;
atexit :: proc(func: proc "c" ()) -> int ---;
at_quick_exit :: proc(func: proc "c" ()) -> int ---;
exit :: proc(status: int) -> ! ---;
_Exit :: proc(status: int) -> ! ---;
getenv :: proc(name: cstring) -> ^char ---;
quick_exit :: proc(status: int) -> ! ---;
system :: proc(cmd: cstring) -> int ---;
// 7.22.5 Searching and sorting utilities
bsearch :: proc(key, base: rawptr, nmemb, size: size_t, compar: proc "c" (lhs, rhs: rawptr) -> int) -> rawptr ---;
qsort :: proc(base: rawptr, nmemb, size: size_t, compar: proc "c" (lhs, rhs: rawptr) -> int) ---;
// 7.22.6 Integer arithmetic functions
abs :: proc(j: int) -> int ---;
labs :: proc(j: long) -> long ---;
llabs :: proc(j: longlong) -> longlong ---;
div :: proc(numer, denom: int) -> div_t ---;
ldiv :: proc(numer, denom: long) -> ldiv_t ---;
lldiv :: proc(numer, denom: longlong) -> lldiv_t ---;
// 7.22.7 Multibyte/wide character conversion functions
mblen :: proc(s: cstring, n: size_t) -> int ---;
mbtowc :: proc(pwc: ^wchar_t, s: cstring, n: size_t) -> int ---;
wctomb :: proc(s: ^char, wc: wchar_t) -> int ---;
// 7.22.8 Multibyte/wide string conversion functions
mbstowcs :: proc(pwcs: ^wchar_t, s: cstring, n: size_t) -> size_t ---;
wcstombs :: proc(s: ^char, pwcs: ^wchar_t, n: size_t) -> size_t ---;
}
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