C Language and Libraries Help (clang.hlp) (Table of Contents; Topic list)
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Data-Conversion Functions
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─────Run-Time Library───────────────────────────────────────────────────────
 
   The following functions convert between strings and numeric types:
 
   atof       _atold       _gcvt        strtod         strtoul
   atoi       _ecvt        _itoa        strtol        _ultoa
   atol       _fcvt        _ltoa       _strtold
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