Auto merge of #3036 - LegionMammal978:iso-c-funcs, r=JohnTitor

Add missing string-to-number functions from ISO C

These should be the observable API changes:

- ISO C90 function `atol()` is added to all `fuchsia`, `unix`, `vxworks`, `wasi`, and `windows` targets.
- ISO C90 function `atof()` is added to `android`, `redox`, and `vxworks`.
- ISO C99 functions `atoll()`, `strtoll()`, and `strtoull()` are added to all `fuchsia`, `unix`, `vxworks`, `wasi`, and `windows` targets.

Also, I wasn't exactly sure where to insert the new functions, so I just tried to place them near related functions.

22 files changed, 44 insertions, 16 deletions

diff --git a/libc-test/semver/android.txt b/libc-test/semver/android.txt
index 815a97eeb3..c2c417a2da 100644
--- a/libc-test/semver/android.txt
+++ b/libc-test/semver/android.txt
@@ -2854,7 +2854,10 @@ arphdr
 arpreq
 arpreq_old
 atexit
+atof
 atoi
+atol
+atoll
 bind
 blkcnt_t
 blksize_t
@@ -3504,7 +3507,9 @@ strtod
 strtof
 strtok
 strtol
+strtoll
 strtoul
+strtoull
 strxfrm
 suseconds_t
 swapoff
diff --git a/libc-test/semver/apple.txt b/libc-test/semver/apple.txt
index 329c8cdaac..3a39b2e9ca 100644
--- a/libc-test/semver/apple.txt
+++ b/libc-test/semver/apple.txt
@@ -1818,7 +1818,6 @@ arc4random
 arc4random_buf
 arc4random_uniform
 arphdr
-atof
 attrgroup_t
 attribute_set_t
 attrlist
diff --git a/libc-test/semver/dragonfly.txt b/libc-test/semver/dragonfly.txt
index 8d0172c112..115c2919af 100644
--- a/libc-test/semver/dragonfly.txt
+++ b/libc-test/semver/dragonfly.txt
@@ -1221,7 +1221,6 @@ arc4random
 arc4random_buf
 arc4random_uniform
 arphdr
-atof
 backtrace
 backtrace_symbols
 backtrace_symbols_fd
diff --git a/libc-test/semver/freebsd.txt b/libc-test/semver/freebsd.txt
index 8a7756c2a2..c188346b9b 100644
--- a/libc-test/semver/freebsd.txt
+++ b/libc-test/semver/freebsd.txt
@@ -1493,7 +1493,6 @@ arc4random
 arc4random_buf
 arc4random_uniform
 arphdr
-atof
 au_asid_t
 au_id_t
 au_mask_t
diff --git a/libc-test/semver/fuchsia.txt b/libc-test/semver/fuchsia.txt
index a4ff41defe..804b270930 100644
--- a/libc-test/semver/fuchsia.txt
+++ b/libc-test/semver/fuchsia.txt
@@ -1168,6 +1168,9 @@ accept4
 acct
 aiocb
 atof
+atoi
+atol
+atoll
 blkcnt64_t
 brk
 clearenv
@@ -1366,6 +1369,8 @@ stat64
 statfs
 statfs64
 statvfs64
+strtoll
+strtoull
 swapoff
 swapon
 sync
diff --git a/libc-test/semver/linux.txt b/libc-test/semver/linux.txt
index 087b1fc10c..e64ebe1918 100644
--- a/libc-test/semver/linux.txt
+++ b/libc-test/semver/linux.txt
@@ -2868,7 +2868,6 @@ arpd_request
 arphdr
 arpreq
 arpreq_old
-atof
 blkcnt64_t
 brk
 bsearch
diff --git a/libc-test/semver/netbsd.txt b/libc-test/semver/netbsd.txt
index d6d519fd58..71cd0d3a48 100644
--- a/libc-test/semver/netbsd.txt
+++ b/libc-test/semver/netbsd.txt
@@ -1166,7 +1166,6 @@ arc4random
 arc4random_buf
 arc4random_uniform
 arphdr
-atof
 bsearch
 chflags
 chroot
diff --git a/libc-test/semver/openbsd.txt b/libc-test/semver/openbsd.txt
index 0dcd2b40c8..07d419a619 100644
--- a/libc-test/semver/openbsd.txt
+++ b/libc-test/semver/openbsd.txt
@@ -977,7 +977,6 @@ arc4random
 arc4random_buf
 arc4random_uniform
 arphdr
-atof
 backtrace
 backtrace_symbols
 backtrace_symbols_fd
diff --git a/libc-test/semver/unix.txt b/libc-test/semver/unix.txt
index 269c0ff0e5..8928c27fef 100644
--- a/libc-test/semver/unix.txt
+++ b/libc-test/semver/unix.txt
@@ -451,7 +451,10 @@ access
 addrinfo
 alarm
 atexit
+atof
 atoi
+atol
+atoll
 bind
 blkcnt_t
 blksize_t
@@ -818,7 +821,9 @@ strtod
 strtof
 strtok
 strtol
+strtoll
 strtoul
+strtoull
 strxfrm
 suseconds_t
 symlink
diff --git a/libc-test/semver/windows.txt b/libc-test/semver/windows.txt
index 1ddf031b14..70ff4df20f 100644
--- a/libc-test/semver/windows.txt
+++ b/libc-test/semver/windows.txt
@@ -152,6 +152,8 @@ aligned_free
 atexit
 atof
 atoi
+atol
+atoll
 bind
 c_char
 c_double
@@ -307,7 +309,9 @@ strtod
 strtof
 strtok
 strtol
+strtoll
 strtoul
+strtoull
 strxfrm
 system
 time
diff --git a/src/fuchsia/mod.rs b/src/fuchsia/mod.rs
index 7a9edada1f..5c6aebde23 100644
--- a/src/fuchsia/mod.rs
+++ b/src/fuchsia/mod.rs
@@ -3402,11 +3402,16 @@ extern "C" {
     pub fn feof(stream: *mut FILE) -> c_int;
     pub fn ferror(stream: *mut FILE) -> c_int;
     pub fn perror(s: *const c_char);
+    pub fn atof(s: *const c_char) -> c_double;
     pub fn atoi(s: *const c_char) -> c_int;
+    pub fn atol(s: *const c_char) -> c_long;
+    pub fn atoll(s: *const c_char) -> c_longlong;
     pub fn strtod(s: *const c_char, endp: *mut *mut c_char) -> c_double;
     pub fn strtof(s: *const c_char, endp: *mut *mut c_char) -> c_float;
     pub fn strtol(s: *const c_char, endp: *mut *mut c_char, base: c_int) -> c_long;
+    pub fn strtoll(s: *const c_char, endp: *mut *mut c_char, base: c_int) -> c_longlong;
     pub fn strtoul(s: *const c_char, endp: *mut *mut c_char, base: c_int) -> c_ulong;
+    pub fn strtoull(s: *const c_char, endp: *mut *mut c_char, base: c_int) -> c_ulonglong;
     pub fn calloc(nobj: size_t, size: size_t) -> *mut c_void;
     pub fn malloc(size: size_t) -> *mut c_void;
     pub fn realloc(p: *mut c_void, size: size_t) -> *mut c_void;
@@ -3448,7 +3453,6 @@ extern "C" {
     pub fn memset(dest: *mut c_void, c: c_int, n: size_t) -> *mut c_void;
 
     pub fn abs(i: c_int) -> c_int;
-    pub fn atof(s: *const c_char) -> c_double;
     pub fn labs(i: c_long) -> c_long;
     pub fn rand() -> c_int;
     pub fn srand(seed: c_uint);
diff --git a/src/unix/bsd/mod.rs b/src/unix/bsd/mod.rs
index d49e3c4402..84e572edab 100644
--- a/src/unix/bsd/mod.rs
+++ b/src/unix/bsd/mod.rs
@@ -613,7 +613,6 @@ extern "C" {
 
     pub fn strerror_r(errnum: ::c_int, buf: *mut c_char, buflen: ::size_t) -> ::c_int;
     pub fn abs(i: ::c_int) -> ::c_int;
-    pub fn atof(s: *const ::c_char) -> ::c_double;
     pub fn labs(i: ::c_long) -> ::c_long;
     #[cfg_attr(
         all(target_os = "freebsd", any(freebsd12, freebsd11, freebsd10)),
diff --git a/src/unix/haiku/mod.rs b/src/unix/haiku/mod.rs
index 005b1d9df5..95ddadaeea 100644
--- a/src/unix/haiku/mod.rs
+++ b/src/unix/haiku/mod.rs
@@ -1592,7 +1592,6 @@ extern "C" {
     pub fn _errnop() -> *mut ::c_int;
 
     pub fn abs(i: ::c_int) -> ::c_int;
-    pub fn atof(s: *const ::c_char) -> ::c_double;
     pub fn labs(i: ::c_long) -> ::c_long;
     pub fn rand() -> ::c_int;
     pub fn srand(seed: ::c_uint);
diff --git a/src/unix/hermit/mod.rs b/src/unix/hermit/mod.rs
index eedfd28a49..6a656a8598 100644
--- a/src/unix/hermit/mod.rs
+++ b/src/unix/hermit/mod.rs
@@ -966,7 +966,6 @@ extern "C" {
     pub fn sem_init(sem: *mut sem_t, pshared: ::c_int, value: ::c_uint) -> ::c_int;
 
     pub fn abs(i: ::c_int) -> ::c_int;
-    pub fn atof(s: *const ::c_char) -> ::c_double;
     pub fn labs(i: ::c_long) -> ::c_long;
     pub fn rand() -> ::c_int;
     pub fn srand(seed: ::c_uint);
diff --git a/src/unix/linux_like/emscripten/mod.rs b/src/unix/linux_like/emscripten/mod.rs
index 11fbb31c38..f2024900cb 100644
--- a/src/unix/linux_like/emscripten/mod.rs
+++ b/src/unix/linux_like/emscripten/mod.rs
@@ -1763,7 +1763,6 @@ extern "C" {
     pub fn strerror_r(errnum: ::c_int, buf: *mut c_char, buflen: ::size_t) -> ::c_int;
 
     pub fn abs(i: ::c_int) -> ::c_int;
-    pub fn atof(s: *const ::c_char) -> ::c_double;
     pub fn labs(i: ::c_long) -> ::c_long;
     pub fn rand() -> ::c_int;
     pub fn srand(seed: ::c_uint);
diff --git a/src/unix/linux_like/linux/mod.rs b/src/unix/linux_like/linux/mod.rs
index 743927e517..9658f07446 100644
--- a/src/unix/linux_like/linux/mod.rs
+++ b/src/unix/linux_like/linux/mod.rs
@@ -3804,7 +3804,6 @@ extern "C" {
     pub fn strerror_r(errnum: ::c_int, buf: *mut c_char, buflen: ::size_t) -> ::c_int;
 
     pub fn abs(i: ::c_int) -> ::c_int;
-    pub fn atof(s: *const ::c_char) -> ::c_double;
     pub fn labs(i: ::c_long) -> ::c_long;
     pub fn rand() -> ::c_int;
     pub fn srand(seed: ::c_uint);
diff --git a/src/unix/mod.rs b/src/unix/mod.rs
index fb9ebf792e..a5722381cb 100644
--- a/src/unix/mod.rs
+++ b/src/unix/mod.rs
@@ -492,7 +492,10 @@ extern "C" {
     pub fn ferror(stream: *mut FILE) -> c_int;
     pub fn clearerr(stream: *mut FILE);
     pub fn perror(s: *const c_char);
+    pub fn atof(s: *const c_char) -> c_double;
     pub fn atoi(s: *const c_char) -> c_int;
+    pub fn atol(s: *const c_char) -> c_long;
+    pub fn atoll(s: *const c_char) -> c_longlong;
     #[cfg_attr(
         all(target_os = "macos", target_arch = "x86"),
         link_name = "strtod$UNIX2003"
@@ -500,7 +503,9 @@ extern "C" {
     pub fn strtod(s: *const c_char, endp: *mut *mut c_char) -> c_double;
     pub fn strtof(s: *const c_char, endp: *mut *mut c_char) -> c_float;
     pub fn strtol(s: *const c_char, endp: *mut *mut c_char, base: c_int) -> c_long;
+    pub fn strtoll(s: *const c_char, endp: *mut *mut c_char, base: c_int) -> c_longlong;
     pub fn strtoul(s: *const c_char, endp: *mut *mut c_char, base: c_int) -> c_ulong;
+    pub fn strtoull(s: *const c_char, endp: *mut *mut c_char, base: c_int) -> c_ulonglong;
     pub fn calloc(nobj: size_t, size: size_t) -> *mut c_void;
     pub fn malloc(size: size_t) -> *mut c_void;
     pub fn realloc(p: *mut c_void, size: size_t) -> *mut c_void;
diff --git a/src/unix/newlib/mod.rs b/src/unix/newlib/mod.rs
index 1a694691a6..3875f1cb4e 100644
--- a/src/unix/newlib/mod.rs
+++ b/src/unix/newlib/mod.rs
@@ -621,7 +621,6 @@ extern "C" {
     pub fn sem_init(sem: *mut sem_t, pshared: ::c_int, value: ::c_uint) -> ::c_int;
 
     pub fn abs(i: ::c_int) -> ::c_int;
-    pub fn atof(s: *const ::c_char) -> ::c_double;
     pub fn labs(i: ::c_long) -> ::c_long;
     pub fn rand() -> ::c_int;
     pub fn srand(seed: ::c_uint);
diff --git a/src/unix/solarish/mod.rs b/src/unix/solarish/mod.rs
index abe304e8ea..99135d5f59 100644
--- a/src/unix/solarish/mod.rs
+++ b/src/unix/solarish/mod.rs
@@ -2710,7 +2710,6 @@ extern "C" {
 
     pub fn abs(i: ::c_int) -> ::c_int;
     pub fn acct(filename: *const ::c_char) -> ::c_int;
-    pub fn atof(s: *const ::c_char) -> ::c_double;
     pub fn dirfd(dirp: *mut ::DIR) -> ::c_int;
     pub fn labs(i: ::c_long) -> ::c_long;
     pub fn rand() -> ::c_int;
diff --git a/src/vxworks/mod.rs b/src/vxworks/mod.rs
index 2772d68d2f..6b705e8a22 100644
--- a/src/vxworks/mod.rs
+++ b/src/vxworks/mod.rs
@@ -1119,11 +1119,16 @@ extern "C" {
     pub fn feof(stream: *mut FILE) -> c_int;
     pub fn ferror(stream: *mut FILE) -> c_int;
     pub fn perror(s: *const c_char);
+    pub fn atof(s: *const c_char) -> c_double;
     pub fn atoi(s: *const c_char) -> c_int;
+    pub fn atol(s: *const c_char) -> c_long;
+    pub fn atoll(s: *const c_char) -> c_longlong;
     pub fn strtod(s: *const c_char, endp: *mut *mut c_char) -> c_double;
     pub fn strtof(s: *const c_char, endp: *mut *mut c_char) -> c_float;
     pub fn strtol(s: *const c_char, endp: *mut *mut c_char, base: c_int) -> c_long;
+    pub fn strtoll(s: *const c_char, endp: *mut *mut c_char, base: c_int) -> c_longlong;
     pub fn strtoul(s: *const c_char, endp: *mut *mut c_char, base: c_int) -> c_ulong;
+    pub fn strtoull(s: *const c_char, endp: *mut *mut c_char, base: c_int) -> c_ulonglong;
     pub fn calloc(nobj: size_t, size: size_t) -> *mut c_void;
     pub fn malloc(size: size_t) -> *mut c_void;
     pub fn realloc(p: *mut c_void, size: size_t) -> *mut c_void;
diff --git a/src/wasi.rs b/src/wasi.rs
index c5dd670477..abfebd6439 100644
--- a/src/wasi.rs
+++ b/src/wasi.rs
@@ -540,12 +540,16 @@ extern "C" {
     pub fn setvbuf(stream: *mut FILE, buffer: *mut c_char, mode: c_int, size: size_t) -> c_int;
     pub fn setbuf(stream: *mut FILE, buf: *mut c_char);
     pub fn fgets(buf: *mut c_char, n: c_int, stream: *mut FILE) -> *mut c_char;
-    pub fn atoi(s: *const c_char) -> c_int;
     pub fn atof(s: *const c_char) -> c_double;
+    pub fn atoi(s: *const c_char) -> c_int;
+    pub fn atol(s: *const c_char) -> c_long;
+    pub fn atoll(s: *const c_char) -> c_longlong;
     pub fn strtod(s: *const c_char, endp: *mut *mut c_char) -> c_double;
     pub fn strtof(s: *const c_char, endp: *mut *mut c_char) -> c_float;
     pub fn strtol(s: *const c_char, endp: *mut *mut c_char, base: c_int) -> c_long;
+    pub fn strtoll(s: *const c_char, endp: *mut *mut c_char, base: c_int) -> c_longlong;
     pub fn strtoul(s: *const c_char, endp: *mut *mut c_char, base: c_int) -> c_ulong;
+    pub fn strtoull(s: *const c_char, endp: *mut *mut c_char, base: c_int) -> c_ulonglong;
 
     pub fn strcpy(dst: *mut c_char, src: *const c_char) -> *mut c_char;
     pub fn strncpy(dst: *mut c_char, src: *const c_char, n: size_t) -> *mut c_char;
diff --git a/src/windows/mod.rs b/src/windows/mod.rs
index 916019b1f2..7f2f1ded19 100644
--- a/src/windows/mod.rs
+++ b/src/windows/mod.rs
@@ -329,11 +329,16 @@ extern "C" {
     pub fn feof(stream: *mut FILE) -> c_int;
     pub fn ferror(stream: *mut FILE) -> c_int;
     pub fn perror(s: *const c_char);
+    pub fn atof(s: *const c_char) -> c_double;
     pub fn atoi(s: *const c_char) -> c_int;
+    pub fn atol(s: *const c_char) -> c_long;
+    pub fn atoll(s: *const c_char) -> c_longlong;
     pub fn strtod(s: *const c_char, endp: *mut *mut c_char) -> c_double;
     pub fn strtof(s: *const c_char, endp: *mut *mut c_char) -> c_float;
     pub fn strtol(s: *const c_char, endp: *mut *mut c_char, base: c_int) -> c_long;
+    pub fn strtoll(s: *const c_char, endp: *mut *mut c_char, base: c_int) -> c_longlong;
     pub fn strtoul(s: *const c_char, endp: *mut *mut c_char, base: c_int) -> c_ulong;
+    pub fn strtoull(s: *const c_char, endp: *mut *mut c_char, base: c_int) -> c_ulonglong;
     pub fn calloc(nobj: size_t, size: size_t) -> *mut c_void;
     pub fn malloc(size: size_t) -> *mut c_void;
     pub fn realloc(p: *mut c_void, size: size_t) -> *mut c_void;
@@ -374,7 +379,6 @@ extern "C" {
     pub fn memset(dest: *mut c_void, c: c_int, n: size_t) -> *mut c_void;
 
     pub fn abs(i: c_int) -> c_int;
-    pub fn atof(s: *const c_char) -> c_double;
     pub fn labs(i: c_long) -> c_long;
     pub fn rand() -> c_int;
     pub fn srand(seed: c_uint);