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According to the C Standard, subclause 7.21.3, paragraph 6 [ISO/IEC 9899:2011],

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This noncompliant code example can fail because a by-value copy of stdout is being used in the call to fputs():

#include <stdio.h>
 
int main(void) {
  FILE my_stdout = *(stdout);
  if (fputs("Hello, World!\n", &my_stdout) == EOF) {
    /* Handle error */
  }
  return 0;
}

For example, this This noncompliant example raises an "access violation" exception at runtime when compiled under Microsoft Visual Studio 2013 and run under Windows.

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In this compliant solution, a copy of the stdout pointer to the FILE object is used in the call to fputs():

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Bibliography

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