---

yaml
---
r: 104178
b: refs/heads/try
c: 804955f
h: refs/heads/master
v: v3

Author: alexcrichton

[refs]

@@ -2,7 +2,7 @@
 refs/heads/master: 62f1d68439dcfd509eaca29887afa97f22938373
 refs/heads/snap-stage1: e33de59e47c5076a89eadeb38f4934f58a3618a6
 refs/heads/snap-stage3: 6e7f170fedd3c526a643c0b2d13863acd982be02
-refs/heads/try: 18477ac68a3daf8260be17be368f59a65c3b7527
+refs/heads/try: 804955f79a372b2f033b479720a7d72b6d77c48f
 refs/tags/release-0.1: 1f5c5126e96c79d22cb7862f75304136e204f105
 refs/heads/ndm: f3868061cd7988080c30d6d5bf352a5a5fe2460b
 refs/heads/try2: 147ecfdd8221e4a4d4e090486829a06da1e0ca3c

branches/try/Makefile.in

@@ -125,7 +125,10 @@ ifdef TRACE
   CFG_RUSTC_FLAGS += -Z trace
 endif
 ifdef CFG_DISABLE_RPATH
-CFG_RUSTC_FLAGS += -C no-rpath
+# NOTE: make this CFG_RUSTC_FLAGS after stage0 snapshot
+RUSTFLAGS_STAGE1 += -C no-rpath
+RUSTFLAGS_STAGE2 += -C no-rpath
+RUSTFLAGS_STAGE3 += -C no-rpath
 endif
 
 # The executables crated during this compilation process have no need to include
@@ -137,7 +140,8 @@ endif
 # snapshot will be generated with a statically linked rustc so we only have to
 # worry about the distribution of one file (with its native dynamic
 # dependencies)
-RUSTFLAGS_STAGE0 += -C prefer-dynamic
+#
+# NOTE: after a snapshot (stage0), put this on stage0 as well
 RUSTFLAGS_STAGE1 += -C prefer-dynamic
 
 # platform-specific auto-configuration

branches/try/mk/crates.mk

@@ -57,7 +57,7 @@ TOOLS := compiletest rustdoc rustc
 
 DEPS_std := native:rustrt native:compiler-rt
 DEPS_extra := std term sync serialize getopts collections
-DEPS_green := std native:context_switch
+DEPS_green := std
 DEPS_rustuv := std native:uv native:uv_support
 DEPS_native := std
 DEPS_syntax := std extra term serialize collections

branches/try/mk/dist.mk

@@ -12,7 +12,7 @@ PKG_ICO = $(S)src/etc/pkg/rust-logo.ico
 PKG_EXE = $(PKG_DIR)-install.exe
 endif
 
-PKG_GITMODULES := $(S)src/libuv $(S)src/llvm $(S)src/gyp $(S)src/compiler-rt
+PKG_GITMODULES := $(S)src/libuv $(S)src/llvm $(S)src/gyp
 
 PKG_FILES := \
     $(S)COPYRIGHT                              \

branches/try/mk/platform.mk

@@ -208,7 +208,7 @@ CFG_GCCISH_DEF_FLAG_arm-apple-darwin := -Wl,-exported_symbols_list,
 CFG_GCCISH_PRE_LIB_FLAGS_arm-apple-darwin :=
 CFG_GCCISH_POST_LIB_FLAGS_arm-apple-darwin :=
 CFG_DEF_SUFFIX_arm-apple-darwin := .darwin.def
-CFG_LLC_FLAGS_arm-apple-darwin := -arm-enable-ehabi -arm-enable-ehabi-descriptors
+CFG_LLC_FLAGS_arm-apple-darwin :=
 CFG_INSTALL_NAME_arm-apple-darwin = -Wl,-install_name,@rpath/$(1)
 CFG_LIBUV_LINK_FLAGS_arm-apple-darwin =
 CFG_EXE_SUFFIX_arm-apple-darwin :=
@@ -290,7 +290,7 @@ CFG_GCCISH_DEF_FLAG_arm-linux-androideabi := -Wl,--export-dynamic,--dynamic-list
 CFG_GCCISH_PRE_LIB_FLAGS_arm-linux-androideabi := -Wl,-whole-archive
 CFG_GCCISH_POST_LIB_FLAGS_arm-linux-androideabi := -Wl,-no-whole-archive
 CFG_DEF_SUFFIX_arm-linux-androideabi := .android.def
-CFG_LLC_FLAGS_arm-linux-androideabi := -arm-enable-ehabi -arm-enable-ehabi-descriptors
+CFG_LLC_FLAGS_arm-linux-androideabi :=
 CFG_INSTALL_NAME_arm-linux-androideabi =
 CFG_LIBUV_LINK_FLAGS_arm-linux-androideabi =
 CFG_EXE_SUFFIX_arm-linux-androideabi :=
@@ -300,7 +300,7 @@ CFG_PATH_MUNGE_arm-linux-androideabi := true
 CFG_LDPATH_arm-linux-androideabi :=
 CFG_RUN_arm-linux-androideabi=
 CFG_RUN_TARG_arm-linux-androideabi=
-RUSTC_FLAGS_arm-linux-androideabi :=
+RUSTC_FLAGS_arm-linux-androideabi :=-C android-cross-path=$(CFG_ANDROID_CROSS_PATH)
 RUSTC_CROSS_FLAGS_arm-linux-androideabi :=-C android-cross-path=$(CFG_ANDROID_CROSS_PATH)
 
 # arm-unknown-linux-gnueabihf configuration
@@ -320,7 +320,7 @@ CFG_GCCISH_DEF_FLAG_arm-unknown-linux-gnueabihf := -Wl,--export-dynamic,--dynami
 CFG_GCCISH_PRE_LIB_FLAGS_arm-unknown-linux-gnueabihf := -Wl,-whole-archive
 CFG_GCCISH_POST_LIB_FLAGS_arm-unknown-linux-gnueabihf := -Wl,-no-whole-archive
 CFG_DEF_SUFFIX_arm-unknown-linux-gnueabihf := .linux.def
-CFG_LLC_FLAGS_arm-unknown-linux-gnueabihf := -arm-enable-ehabi -arm-enable-ehabi-descriptors
+CFG_LLC_FLAGS_arm-unknown-linux-gnueabihf :=
 CFG_INSTALL_NAME_ar,-unknown-linux-gnueabihf =
 CFG_LIBUV_LINK_FLAGS_arm-unknown-linux-gnueabihf =
 CFG_EXE_SUFFIX_arm-unknown-linux-gnueabihf :=
@@ -331,7 +331,7 @@ CFG_LDPATH_arm-unknown-linux-gnueabihf :=
 CFG_RUN_arm-unknown-linux-gnueabihf=$(2)
 CFG_RUN_TARG_arm-unknown-linux-gnueabihf=$(call CFG_RUN_arm-unknown-linux-gnueabihf,,$(2))
 RUSTC_FLAGS_arm-unknown-linux-gnueabihf :=
-RUSTC_CROSS_FLAGS_arm-unknown-linux-gnueabihf :=
+RUSTC_CROSS_FLAGS_arm-unknown-linux-gnueabihf := --linker=$(CROSS_PREFIX_arm-unknown-linux-gnueabihf)$(CXX_arm-unknown-linux-gnueabihf)
 
 # arm-unknown-linux-gnueabi configuration
 CROSS_PREFIX_arm-unknown-linux-gnueabi=arm-linux-gnueabi-
@@ -343,7 +343,7 @@ CFG_LIB_NAME_arm-unknown-linux-gnueabi=lib$(1).so
 CFG_STATIC_LIB_NAME_arm-unknown-linux-gnueabi=lib$(1).a
 CFG_LIB_GLOB_arm-unknown-linux-gnueabi=lib$(1)-*.so
 CFG_LIB_DSYM_GLOB_arm-unknown-linux-gnueabi=lib$(1)-*.dylib.dSYM
-CFG_GCCISH_CFLAGS_arm-unknown-linux-gnueabi := -Wall -g -fPIC -D__arm__ -mfpu=vfp
+CFG_GCCISH_CFLAGS_arm-unknown-linux-gnueabi := -Wall -g -fPIC -D__arm__
 CFG_GCCISH_CXXFLAGS_arm-unknown-linux-gnueabi := -fno-rtti
 CFG_GCCISH_LINK_FLAGS_arm-unknown-linux-gnueabi := -shared -fPIC -g
 CFG_GCCISH_DEF_FLAG_arm-unknown-linux-gnueabi := -Wl,--export-dynamic,--dynamic-list=
@@ -361,7 +361,7 @@ CFG_LDPATH_arm-unknown-linux-gnueabi :=
 CFG_RUN_arm-unknown-linux-gnueabi=$(2)
 CFG_RUN_TARG_arm-unknown-linux-gnueabi=$(call CFG_RUN_arm-unknown-linux-gnueabi,,$(2))
 RUSTC_FLAGS_arm-unknown-linux-gnueabi :=
-RUSTC_CROSS_FLAGS_arm-unknown-linux-gnueabi :=
+RUSTC_CROSS_FLAGS_arm-unknown-linux-gnueabi := --linker=$(CROSS_PREFIX_arm-unknown-linux-gnueabi)$(CXX_arm-unknown-linux-gnueabi)
 
 # mips-unknown-linux-gnu configuration
 CC_mips-unknown-linux-gnu=mips-linux-gnu-gcc
@@ -389,7 +389,7 @@ CFG_PATH_MUNGE_mips-unknown-linux-gnu := true
 CFG_LDPATH_mips-unknown-linux-gnu :=
 CFG_RUN_mips-unknown-linux-gnu=
 CFG_RUN_TARG_mips-unknown-linux-gnu=
-RUSTC_FLAGS_mips-unknown-linux-gnu := -C target-cpu=mips32r2 -C target-feature="+mips32r2,+o32" -C soft-float
+RUSTC_FLAGS_mips-unknown-linux-gnu := --linker=$(CXX_mips-unknown-linux-gnu) --target-cpu mips32r2 --target-feature +mips32r2,+o32 -Z soft-float
 
 # i686-pc-mingw32 configuration
 CC_i686-pc-mingw32=$(CC)
@@ -475,7 +475,7 @@ CFG_PATH_MUNGE_i686-w64-mingw32 :=
 CFG_LDPATH_i686-w64-mingw32 :=$(CFG_LDPATH_i686-w64-mingw32):$(PATH)
 CFG_RUN_i686-w64-mingw32=PATH="$(CFG_LDPATH_i686-w64-mingw32):$(1)" $(2)
 CFG_RUN_TARG_i686-w64-mingw32=$(call CFG_RUN_i686-w64-mingw32,$(HLIB$(1)_H_$(CFG_BUILD)),$(2))
-RUSTC_CROSS_FLAGS_i686-w64-mingw32 :=
+RUSTC_CROSS_FLAGS_i686-w64-mingw32 := --linker=$(CROSS_PREFIX_i686-w64-mingw32)$(CXX_i686-w64-mingw32)
 
 # x86_64-w64-mingw32 configuration
 CROSS_PREFIX_x86_64-w64-mingw32=x86_64-w64-mingw32-
@@ -504,7 +504,7 @@ CFG_PATH_MUNGE_x86_64-w64-mingw32 :=
 CFG_LDPATH_x86_64-w64-mingw32 :=$(CFG_LDPATH_x86_64-w64-mingw32):$(PATH)
 CFG_RUN_x86_64-w64-mingw32=PATH="$(CFG_LDPATH_x86_64-w64-mingw32):$(1)" $(2)
 CFG_RUN_TARG_x86_64-w64-mingw32=$(call CFG_RUN_x86_64-w64-mingw32,$(HLIB$(1)_H_$(CFG_BUILD)),$(2))
-RUSTC_CROSS_FLAGS_x86_64-w64-mingw32 :=
+RUSTC_CROSS_FLAGS_x86_64-w64-mingw32 := --linker=$(CROSS_PREFIX_x86_64-w64-mingw32)$(CXX_x86_64-w64-mingw32)
 
 # x86_64-unknown-freebsd configuration
 CC_x86_64-unknown-freebsd=$(CC)
@@ -549,9 +549,8 @@ define CFG_MAKE_TOOLCHAIN
 	CXX_$(1)=$(CROSS_PREFIX_$(1))$(CXX_$(1))
 	CPP_$(1)=$(CROSS_PREFIX_$(1))$(CPP_$(1))
 	AR_$(1)=$(CROSS_PREFIX_$(1))$(AR_$(1))
-	RUSTC_CROSS_FLAGS_$(1)=-C linker=$$(CXX_$(1)) -C ar=$$(AR_$(1)) $(RUSTC_CROSS_FLAGS_$(1))
 
-	RUSTC_FLAGS_$(1)=$$(RUSTC_CROSS_FLAGS_$(1)) $(RUSTC_FLAGS_$(1))
+	RUSTC_FLAGS_$(1)=$(RUSTC_CROSS_FLAGS_$(1))
   endif
 
   CFG_COMPILE_C_$(1) = $$(CC_$(1))  \

branches/try/mk/rt.mk

@@ -35,7 +35,7 @@
 # that's per-target so you're allowed to conditionally add files based on the
 # target.
 ################################################################################
-NATIVE_LIBS := rustrt sundown uv_support morestack miniz context_switch
+NATIVE_LIBS := rustrt sundown uv_support morestack miniz
 
 # $(1) is the target triple
 define NATIVE_LIBRARIES
@@ -54,10 +54,9 @@ NATIVE_DEPS_rustrt_$(1) := rust_builtin.c \
 			rust_android_dummy.c \
 			rust_test_helpers.c \
 			rust_try.ll \
+			arch/$$(HOST_$(1))/_context.S \
 			arch/$$(HOST_$(1))/record_sp.S
 NATIVE_DEPS_morestack_$(1) := arch/$$(HOST_$(1))/morestack.S
-NATIVE_DEPS_context_switch_$(1) := \
-			arch/$$(HOST_$(1))/_context.S
 
 ################################################################################
 # You shouldn't find it that necessary to edit anything below this line.

branches/try/mk/tests.mk

@@ -333,22 +333,21 @@ $(foreach host,$(CFG_HOST), \
 
 define TEST_RUNNER
 
-# If NO_REBUILD is set then break the dependencies on everything but
-# the source files so we can test crates without rebuilding any of the
-# parent crates.
+# If NO_REBUILD is set then break the dependencies on extra so we can
+# test crates without rebuilding std and extra first
 ifeq ($(NO_REBUILD),)
-TESTDEP_$(1)_$(2)_$(3)_$(4) = $$(SREQ$(1)_T_$(2)_H_$(3)) \
+STDTESTDEP_$(1)_$(2)_$(3)_$(4) = $$(SREQ$(1)_T_$(2)_H_$(3)) \
 			    $$(foreach crate,$$(TARGET_CRATES),\
-				$$(TLIB$(1)_T_$(2)_H_$(3))/stamp.$$(crate)) \
-				$$(CRATE_FULLDEPS_$(1)_T_$(2)_H_$(3)_$(4))
+				$$(TLIB$(1)_T_$(2)_H_$(3))/stamp.$$(crate))
 else
-TESTDEP_$(1)_$(2)_$(3)_$(4) = $$(RSINPUTS_$(4))
+STDTESTDEP_$(1)_$(2)_$(3)_$(4) =
 endif
 
 $(3)/stage$(1)/test/$(4)test-$(2)$$(X_$(2)): CFG_COMPILER = $(2)
 $(3)/stage$(1)/test/$(4)test-$(2)$$(X_$(2)):				\
-		$$(CRATEFILE_$(4)) \
-		$$(TESTDEP_$(1)_$(2)_$(3)_$(4))
+		$$(CRATEFILE_$(4))					\
+		$$(CRATE_FULLDEPS_$(1)_T_$(2)_H_$(3)_$(4))		\
+		$$(STDTESTDEP_$(1)_$(2)_$(3)_$(4))
 	@$$(call E, oxidize: $$@)
 	$$(STAGE$(1)_T_$(2)_H_$(3)) -o $$@ $$< --test	\
 		-L "$$(RT_OUTPUT_DIR_$(2))"		\
@@ -554,8 +553,7 @@ CTEST_COMMON_ARGS$(1)-T-$(2)-H-$(3) :=						\
         --host $(3)                                       \
         --adb-path=$(CFG_ADB)                          \
         --adb-test-dir=$(CFG_ADB_TEST_DIR)                  \
-        --host-rustcflags "$(RUSTC_FLAGS_$(3)) $$(CTEST_RUSTC_FLAGS) -L $$(RT_OUTPUT_DIR_$(2))" \
-        --target-rustcflags "$(RUSTC_FLAGS_$(2)) $$(CTEST_RUSTC_FLAGS) -L $$(RT_OUTPUT_DIR_$(2))" \
+        --rustcflags "$(RUSTC_FLAGS_$(2)) $$(CTEST_RUSTC_FLAGS) -L $$(RT_OUTPUT_DIR_$(2))" \
         $$(CTEST_TESTARGS)
 
 CTEST_DEPS_rpass_$(1)-T-$(2)-H-$(3) = $$(RPASS_TESTS)
@@ -686,22 +684,13 @@ $(foreach host,$(CFG_HOST), \
 
 define DEF_CRATE_DOC_TEST
 
-# If NO_REBUILD is set then break the dependencies on everything but
-# the source files so we can test crate documentation without
-# rebuilding any of the parent crates.
-ifeq ($(NO_REBUILD),)
-DOCTESTDEP_$(1)_$(2)_$(3)_$(4) = \
-	$$(TEST_SREQ$(1)_T_$(2)_H_$(3))				\
-	$$(CRATE_FULLDEPS_$(1)_T_$(2)_H_$(3)_$(4))		\
-	$$(HBIN$(1)_H_$(3))/rustdoc$$(X_$(3))
-else
-DOCTESTDEP_$(1)_$(2)_$(3)_$(4) = $$(RSINPUTS_$(4))
-endif
-
 check-stage$(1)-T-$(2)-H-$(3)-doc-$(4)-exec: $$(call TEST_OK_FILE,$(1),$(2),$(3),doc-$(4))
 
 ifeq ($(2),$$(CFG_BUILD))
-$$(call TEST_OK_FILE,$(1),$(2),$(3),doc-$(4)): $$(DOCTESTDEP_$(1)_$(2)_$(3)_$(4))
+$$(call TEST_OK_FILE,$(1),$(2),$(3),doc-$(4)):				\
+	        $$(TEST_SREQ$(1)_T_$(2)_H_$(3))				\
+		$$(CRATE_FULLDEPS_$(1)_T_$(2)_H_$(3)_$(4))		\
+		$$(HBIN$(1)_H_$(3))/rustdoc$$(X_$(3))
 	@$$(call E, run doc-$(4) [$(2)])
 	$$(Q)$$(HBIN$(1)_H_$(3))/rustdoc$$(X_$(3)) --test \
 	    $$(CRATEFILE_$(4)) --test-args "$$(TESTARGS)" && touch $$@

branches/try/src/compiletest/common.rs

@@ -77,11 +77,8 @@ pub struct config {
     // for running under valgrind
     runtool: Option<~str>,
 
-    // Flags to pass to the compiler when building for the host
-    host_rustcflags: Option<~str>,
-
-    // Flags to pass to the compiler when building for the target
-    target_rustcflags: Option<~str>,
+    // Flags to pass to the compiler
+    rustcflags: Option<~str>,
 
     // Run tests using the JIT
     jit: bool,

branches/try/src/compiletest/compiletest.rs

@@ -64,8 +64,7 @@ pub fn parse_config(args: ~[~str]) -> config {
           optflag("", "ignored", "run tests marked as ignored"),
           optopt("", "runtool", "supervisor program to run tests under \
                                  (eg. emulator, valgrind)", "PROGRAM"),
-          optopt("", "host-rustcflags", "flags to pass to rustc for host", "FLAGS"),
-          optopt("", "target-rustcflags", "flags to pass to rustc for target", "FLAGS"),
+          optopt("", "rustcflags", "flags to pass to rustc", "FLAGS"),
           optflag("", "verbose", "run tests verbosely, showing all output"),
           optopt("", "logfile", "file to log test execution to", "FILE"),
           optopt("", "save-metrics", "file to save metrics to", "FILE"),
@@ -133,8 +132,7 @@ pub fn parse_config(args: ~[~str]) -> config {
         ratchet_noise_percent:
             matches.opt_str("ratchet-noise-percent").and_then(|s| from_str::<f64>(s)),
         runtool: matches.opt_str("runtool"),
-        host_rustcflags: matches.opt_str("host-rustcflags"),
-        target_rustcflags: matches.opt_str("target-rustcflags"),
+        rustcflags: matches.opt_str("rustcflags"),
         jit: matches.opt_present("jit"),
         target: opt_str2(matches.opt_str("target")).to_str(),
         host: opt_str2(matches.opt_str("host")).to_str(),
@@ -163,8 +161,7 @@ pub fn log_config(config: &config) {
     logv(c, format!("run_ignored: {}", config.run_ignored));
     logv(c, format!("filter: {}", opt_str(&config.filter)));
     logv(c, format!("runtool: {}", opt_str(&config.runtool)));
-    logv(c, format!("host-rustcflags: {}", opt_str(&config.host_rustcflags)));
-    logv(c, format!("target-rustcflags: {}", opt_str(&config.target_rustcflags)));
+    logv(c, format!("rustcflags: {}", opt_str(&config.rustcflags)));
     logv(c, format!("jit: {}", config.jit));
     logv(c, format!("target: {}", config.target));
     logv(c, format!("host: {}", config.host));
@@ -222,14 +219,12 @@ pub fn run_tests(config: &config) {
             mode_debug_info => {
                 println!("arm-linux-androideabi debug-info \
                          test uses tcp 5039 port. please reserve it");
+                //arm-linux-androideabi debug-info test uses remote debugger
+                //so, we test 1 task at once
+                os::setenv("RUST_TEST_TASKS","1");
             }
             _ =>{}
         }
-
-        //arm-linux-androideabi debug-info test uses remote debugger
-        //so, we test 1 task at once.
-        // also trying to isolate problems with adb_run_wrapper.sh ilooping
-        os::setenv("RUST_TEST_TASKS","1");
     }
 
     let opts = test_opts(config);

branches/try/src/compiletest/header.rs

@@ -108,8 +108,6 @@ pub fn is_test_ignored(config: &config, testfile: &Path) -> bool {
         else if parse_name_directive(ln, ignore_stage(config)) { false }
         else if config.mode == common::mode_pretty &&
             parse_name_directive(ln, "ignore-pretty") { false }
-        else if config.target != config.host &&
-            parse_name_directive(ln, "ignore-cross-compile") { false }
         else { true }
     });
 

branches/try/src/compiletest/runtest.rs

@@ -250,7 +250,7 @@ actual:\n\
                          ~"-L", config.build_base.as_str().unwrap().to_owned(),
                          ~"-L",
                          aux_dir.as_str().unwrap().to_owned()];
-        args.push_all_move(split_maybe_args(&config.target_rustcflags));
+        args.push_all_move(split_maybe_args(&config.rustcflags));
         args.push_all_move(split_maybe_args(&props.compile_flags));
         // FIXME (#9639): This needs to handle non-utf8 paths
         return ProcArgs {prog: config.rustc_path.as_str().unwrap().to_owned(), args: args};
@@ -260,9 +260,9 @@ actual:\n\
 fn run_debuginfo_test(config: &config, props: &TestProps, testfile: &Path) {
 
     // do not optimize debuginfo tests
-    let mut config = match config.target_rustcflags {
+    let mut config = match config.rustcflags {
         Some(ref flags) => config {
-            target_rustcflags: Some(flags.replace("-O", "")),
+            rustcflags: Some(flags.replace("-O", "")),
             .. (*config).clone()
         },
         None => (*config).clone()
@@ -329,7 +329,7 @@ fn run_debuginfo_test(config: &config, props: &TestProps, testfile: &Path) {
                 break;
             }
 
-            let args = split_maybe_args(&config.target_rustcflags);
+            let args = split_maybe_args(&config.rustcflags);
             let mut tool_path:~str = ~"";
             for arg in args.iter() {
                 if arg.contains("android-cross-path=") {
@@ -770,11 +770,7 @@ fn make_compile_args(config: &config,
         ThisDirectory(path) => { args.push(~"--out-dir"); path }
     };
     args.push(path.as_str().unwrap().to_owned());
-    if props.force_host {
-        args.push_all_move(split_maybe_args(&config.host_rustcflags));
-    } else {
-        args.push_all_move(split_maybe_args(&config.target_rustcflags));
-    }
+    args.push_all_move(split_maybe_args(&config.rustcflags));
     args.push_all_move(split_maybe_args(&props.compile_flags));
     return ProcArgs {prog: config.rustc_path.as_str().unwrap().to_owned(), args: args};
 }

branches/try/src/doc/complement-cheatsheet.md

@@ -36,42 +36,12 @@ let y: ~str = x.to_str_radix(16);
 Use [`FromStrRadix`](http://static.rust-lang.org/doc/master/std/num/trait.FromStrRadix.html), and its helper function, [`from_str_radix`](http://static.rust-lang.org/doc/master/std/num/fn.from_str_radix.html).
 
 ~~~
-use std::num;
+use std::num::from_str_radix;
 
-let x: Option<i64> = num::from_str_radix("deadbeef", 16);
+let x: Option<i64> = from_str_radix("deadbeef", 16);
 let y: i64 = x.unwrap();
 ~~~
 
-**Vector of Bytes to String**
-
-To return a Borrowed String Slice (&str) use the str helper function [`from_utf8`](http://static.rust-lang.org/doc/master/std/str/fn.from_utf8.html).
-
-~~~
-use std::str;
-
-let bytes = ~[104u8,105u8];
-let x: Option<&str> = str::from_utf8(bytes);
-let y: &str = x.unwrap();
-~~~
-
-To return an Owned String (~str) use the str helper function [`from_utf8_owned`](http://static.rust-lang.org/doc/master/std/str/fn.from_utf8_owned.html).
-
-~~~
-use std::str;
-
-let x: Option<~str> = str::from_utf8_owned(~[104u8,105u8]);
-let y: ~str = x.unwrap();
-~~~~
-
-To return a [`MaybeOwned`](http://static.rust-lang.org/doc/master/std/str/enum.MaybeOwned.html) use the str helper function [`from_utf8_lossy`](http://static.rust-lang.org/doc/master/std/str/fn.from_utf8_owned.html).  This function also replaces non-valid utf-8 sequences with U+FFFD replacement character.
-
-~~~
-use std::str;
-
-let x = bytes!(72u8,"ello ",0xF0,0x90,0x80,"World!");
-let y = str::from_utf8_lossy(x);
-~~~~
-
 # File operations
 
 ## How do I read from a file?