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C++
Compiler support
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Standard library
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Feature test macros
(C++20)
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(C++20)
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(C++11)
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Text processing library
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(C++11)
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(C++17)
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(C++17)
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(C++17)
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(C++17)
chars_format
(C++17)
Text encoding identifications
text_encoding
(C++26)
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isdigit
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isblank
(C++11)
iscntrl
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atof
atoi
atol
atoll
(C++11)
strtol
strtoll
(C++11)
strtoul
strtoull
(C++11)
strtof
strtod
strtold
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(C++11)
strtoimax
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(C++11)
(C++11)
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