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- Q24291 Bad Code Generation with Undefined Value of I
- C Compiler
- 5.00
- MS-DOS
-
- Problem:
- The compiler seems to generate incorrect code for a function call
- of the following form, where i1, i2 and I all are declared as ints:
-
- func((I = i1,I*I),(I = i2,I*I));
-
- Response:
- Please note that constructs such as the one above are quite
- unusual. Note that the value of I is undefined after the function
- call; most C programmers will avoid expressions that produce similar
- undefined side effects; therefore, very few customers will encounter
- this problem.
- We recommend that you recode your function call (or change your
- macro) as follows avoid the undefined side effect and generate better
- code:
-
- foo ( i1*i1, i2*i2 );
-
- Keywords: TAR62152 buglist5.00 buglist5.10
- Updated 88/07/21 03:19
-