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Diffstat (limited to 'src/glsl/glcpp/README')
| -rw-r--r-- | src/glsl/glcpp/README | 25 |
1 files changed, 1 insertions, 24 deletions
diff --git a/src/glsl/glcpp/README b/src/glsl/glcpp/README index 9cc00e9275..0b5ef508ce 100644 --- a/src/glsl/glcpp/README +++ b/src/glsl/glcpp/README @@ -29,27 +29,4 @@ The __LINE__ and __FILE__ macros are not yet supported. A file that ends with a function-like macro name as the last non-whitespace token will result in a parse error, (where it should be -passed through as is). - -Known deviations from the specification ---------------------------------------- -As mentoned above, the GLSL specification (as of 1.30.10) is fairly -vague on some aspects of the preprocessor, and we've been using C99 to -fill in details. Here is a list of cases where we have deviated from -the behavior specified in C99 to obtain better compatibility with -other GLSL implementations: - - * Redefining a macro with a different value - - C89 says that a macro "may be redefined ... provided that the - second definition [is equivalent]" (Section 3.8.3 Macro - Replacement/constraints) - - C99 is even more explicit, saying tthat a macro "shall not be - redefined by another #define preprocessing directive unless the - second definition [is equivalent]" (Section 6.10.3 Macro - Replacement/Constraints) - - In spite of this, glcpp emits a warning rather than an error for - non-equivalent redefinition of macros since this matches the - behavior of other, widely-used implementations. +passed through as is).
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