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[SR-12738] String(format:…) doesn't respect width and precision specifiers for $@ #53304

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swift-ci opened this issue Jun 11, 2019 · 0 comments
Open

[SR-12738] String(format:…) doesn't respect width and precision specifiers for $@ #53304

swift-ci opened this issue Jun 11, 2019 · 0 comments
Labels
bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. standard library Area: Standard library umbrella

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Previous ID SR-12738
Radar None
Original Reporter rmann (JIRA User)
Type Bug
Additional Detail from JIRA
Votes 0
Component/s Standard Library
Labels Bug
Assignee None
Priority Medium

md5: 5eb5642615be0864bce82383c8848162

Issue Description:

Swift's String(format:…) seems to ignore the minimum/maximum width specifier when applied to %@ conversions, unlike NSLog():

var s1 = String(format: "<%10.10@>", "Hello, playground")
print(s1)
var s2 = String(format: "<%10.10@>", "Hello")
print(s2)

prints:

<Hello, playground>
<Hello>

In Objective-C:

NSLog(@"<%10.10@>", @"Hello, playground");
NSLog(@"<%10.10@>", @"Hello");

prints:

<Hello, pla>
<     Hello>
@swift-ci swift-ci transferred this issue from apple/swift-issues Apr 25, 2022
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bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. standard library Area: Standard library umbrella
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