Monday, April 04, 2005

Different behaviours with different compilers

here is a segment of C code

int i = 0;
printf("%d %d\n", i, i++);

outputs from different compilers

gcc version 3.4.2 [FreeBSD] 20040728
1 0

M$ VC++ .Net 2003
1 0

Intel C++ Compiler version 8.1.479.2003
1 0

M$ VC++ 6.0
0 0

posted by GapLo @ 3:41 pm   1 comments

1 Comments:

At 9:51 pm, Blogger hkeric said...

IS0/IEC 9899:1999 (E)

7.24.2 Formatted wide character input/output functions

1 The formatted wide character input/output functions shall behave as if there is a sequence point after the actions associated with each specifier.

Seems gcc execute the last argument first, while VC executes the first argument first.

 

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