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Standard C offers no portable string-to-float error detection

Original: No portable way to detect string-to-float conversion errors in standard C

A new write-up argues that standard C provides no fully portable way to detect errors when converting strings to floating-point numbers. The article examines functions like strtod and the edge cases that make reliable error handling across platforms and implementations impossible, reigniting familiar criticism of the C standard library's numerics and string handling among developers.

Why now: Programmers are debating a long-standing flaw in the C standard library that affects portability and correctness of numeric parsing

C standard librarystrtodISO C

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Evidence

• No portable way to detect string-to-float conversion errors in standard C · signa11 · 80

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