C Language and Libraries Help (clang.hlp) (Table of Contents; Topic list)
FOPEN_MAX, _SYS_OPEN
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─────Run-Time Library───────────────────────────────────────────────────────
 
  Constant:  FOPEN_MAX, _SYS_OPEN
 
  Include:   <stdio.h>
 
  Summary:   Maximum number of files that can be opened simultaneously.
             FOPEN_MAX is the ANSI-compatible name. _SYS_OPEN is
             maintained for compatibility.
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