98 lines
2.7 KiB
Markdown
98 lines
2.7 KiB
Markdown
[floatfield.manip]
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# 31 Input/output library [[input.output]](./#input.output)
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## 31.5 Iostreams base classes [[iostreams.base]](iostreams.base#floatfield.manip)
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### 31.5.5 ios_base manipulators [[std.ios.manip]](std.ios.manip#floatfield.manip)
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#### 31.5.5.4 floatfield manipulators [floatfield.manip]
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[1](#1)
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[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/iostreams.tex#L2750)
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Each function specified in this subclause
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is a designated addressable function ([[namespace.std]](namespace.std "16.4.5.2.1 Namespace std"))[.](#1.sentence-1)
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[ð](#lib:fixed)
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`ios_base& fixed(ios_base& str);
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`
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[2](#2)
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[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/iostreams.tex#L2760)
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*Effects*: Callsstr.setf(ios_base::fixed, ios_base::floatfield)[.](#2.sentence-1)
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[3](#3)
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[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/iostreams.tex#L2765)
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*Returns*: str[.](#3.sentence-1)
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[ð](#lib:scientific)
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`ios_base& scientific(ios_base& str);
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`
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[4](#4)
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[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/iostreams.tex#L2776)
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*Effects*: Callsstr.setf(ios_base::scientific, ios_base::floatfield)[.](#4.sentence-1)
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[5](#5)
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[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/iostreams.tex#L2781)
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*Returns*: str[.](#5.sentence-1)
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[ð](#lib:hexfloat)
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`ios_base& hexfloat(ios_base& str);
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`
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[6](#6)
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[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/iostreams.tex#L2792)
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*Effects*: Calls str.setf(ios_base::fixed | ios_base::scientific,
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ios_base::floatfield)[.](#6.sentence-1)
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[7](#7)
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[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/iostreams.tex#L2797)
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*Returns*: str[.](#7.sentence-1)
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[8](#8)
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[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/iostreams.tex#L2802)
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[*Note [1](#note-1)*:
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ios_base::hex cannot be used to specify
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a hexadecimal floating-point format,
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because it is not part of ios_base::floatfield (Table [137](ios.fmtflags#tab:ios.fmtflags.const "Table 137: fmtflags constants"))[.](#8.sentence-1)
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â *end note*]
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[ð](#lib:defaultfloat)
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`ios_base& defaultfloat(ios_base& str);
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`
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[9](#9)
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[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/iostreams.tex#L2816)
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*Effects*: Calls str.unsetf(ios_base::floatfield)[.](#9.sentence-1)
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[10](#10)
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[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/iostreams.tex#L2820)
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*Returns*: str[.](#10.sentence-1)
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