averello/swift-mirror
1
0
Fork 0
mirror of https://github.com/apple/swift.git synced 2025-12-14 20:36:38 +01:00
Code Issues Packages Projects Releases Wiki Activity

[stdlib] Floating-point parsing

Browse Source 
Swift SVN r25627
This commit is contained in:
Dave Abrahams
2015-02-28 00:12:30 +00:00
parent 8cf7b8b4ae
commit 367f308888
5 changed files with 104 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

49
test/1_stdlib/NumericParsing.swift.gyb
View File

@@ -11,7 +11,7 @@
//===----------------------------------------------------------------------===//
// -*- swift -*-
// RUN: rm -rf %t ; mkdir -p %t
// RUN: %S/../../utils/gyb -Dtarget_ptrsize=%target-ptrsize %s -o %t/NumericParsing.swift
// RUN: %S/../../utils/gyb -DCMAKE_SIZEOF_VOID_P=%target-ptrsize %s -o %t/NumericParsing.swift
// RUN: %S/../../utils/line-directive %t/NumericParsing.swift -- %target-build-swift %t/NumericParsing.swift -o %t/a.out
// RUN: %S/../../utils/line-directive %t/NumericParsing.swift -- %target-run %t/a.out
//
@@ -19,7 +19,7 @@
%{
from SwiftIntTypes import *
word_bits = int(target_ptrsize)
word_bits = int(CMAKE_SIZEOF_VOID_P)
def maskOfWidth(n):
return (1 << n) - 1
@@ -47,6 +47,7 @@ number_of_values = 23
}%
import StdlibUnittest
import Darwin
var tests = TestSuite("NumericParsing")
@@ -115,4 +116,48 @@ tests.test("${Self}/radixTooHigh") {
% end
% for Self in 'Float', 'Double', 'Float80':
% if Self == 'Float80':
#if arch(i386) || arch(x86_64)
% end
tests.test("${Self}/Basics") {
setlocale(LC_ALL, "")
% if Self != 'Float80': # Inf/NaN are not defined for Float80
expectEqual(.infinity, ${Self}("Inf"))
expectEqual(-(.infinity), ${Self}("-Inf"))
expectEqual(toString(${Self}.NaN), toString(${Self}("NaN")!))
% end
expectEqual(-0.0, ${Self}("-0"))
expectEqual(-0.0, ${Self}("-0.0"))
expectEqual(0.0, ${Self}("0"))
expectEqual(0.0, ${Self}("0.0"))
expectEqual(64206, ${Self}("0xFACE")) // Yes, strtoXXX supports hex.
// Check that we can round-trip the string representation of 2^100,
// which requires an exponent to express...
let large = reduce(Repeat(count: 10, repeatedValue: 1024 as ${Self}), 1, *)
let largeText = toString(large)
expectEqual(largeText, toString(${Self}(largeText)!))
// ...ditto for its inverse.
let smallText = toString(1 / large)
expectEqual(smallText, toString(${Self}(smallText)!))
// Cases that should fail to parse
expectEmpty(${Self}("")) // EMPTY
expectEmpty(${Self}("0FACE")) // Hex characters without 0x
expectEmpty(${Self}("99x"))
expectEmpty(${Self}(" 0")) // Leading whitespace
expectEmpty(${Self}("0 ")) // Trailing whitespace
}
% if Self == 'Float80':
#endif
% end
% end
runAllTests()