Merge pull request #1958 from ziglang/parse-float

Add float parsing support to std

Author: tiehuis

CMakeLists.txt

@@ -482,6 +482,7 @@ set(ZIG_STD_FILES
     "fmt/errol/index.zig"
     "fmt/errol/lookup.zig"
     "fmt/index.zig"
+    "fmt/parse_float.zig"
     "hash/adler.zig"
     "hash/crc.zig"
     "hash/fnv.zig"
@@ -608,6 +609,7 @@ set(ZIG_STD_FILES
     "special/bootstrap_lib.zig"
     "special/build_runner.zig"
     "special/builtin.zig"
+    "special/compiler_rt/addXf3.zig"
     "special/compiler_rt/aulldiv.zig"
     "special/compiler_rt/aullrem.zig"
     "special/compiler_rt/comparetf2.zig"

std/fmt/index.zig

@@ -831,7 +831,7 @@ pub fn parseUnsigned(comptime T: type, buf: []const u8, radix: u8) ParseUnsigned
     return x;
 }
 
-test "parseUnsigned" {
+test "fmt.parseUnsigned" {
     testing.expect((try parseUnsigned(u16, "050124", 10)) == 50124);
     testing.expect((try parseUnsigned(u16, "65535", 10)) == 65535);
     testing.expectError(error.Overflow, parseUnsigned(u16, "65536", 10));
@@ -858,6 +858,12 @@ test "parseUnsigned" {
     testing.expectError(error.Overflow, parseUnsigned(u2, "4", 16));
 }
 
+pub const parseFloat = @import("parse_float.zig").parseFloat;
+
+test "fmt.parseFloat" {
+    _ = @import("parse_float.zig");
+}
+
 pub fn charToDigit(c: u8, radix: u8) (error{InvalidCharacter}!u8) {
     const value = switch (c) {
         '0'...'9' => c - '0',