scc

Simple C99 Compiler
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commit 23f5f2a42ef1065d2c3eb91fe2161e4e570ba557
parent fcde896a2c7aff772491c9d93b24093546cb7274
Author: Roberto E. Vargas Caballero <k0ga@shike2.com>
Date:   Thu, 16 Jun 2016 11:36:55 +0200

Modify README

The text about volatile was not correct. The definition of the standard
about volatile is very precise, and it is not related to optimizations
like it is said there. It is related to the concept of control points.

Diffstat:
README | 7++-----
1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/README b/README @@ -17,10 +17,7 @@ unnecessary complexity to the compiler (and increased compilation time): the compiler will treat them like normal variables (the standard specifies that a diagnostic message must be printed). - - volatile: The definition of volatile is not concrete, because - it is defined as 'remove all optimizations applied to the - variable', which of course depends on the kind of optimizations - applied to the variable. This qualifier was added to the standard + - volatile: This qualifier was added to the standard to be able to deal with longjmp (local variables that are not volatile have undefined state) and for memory mapped registers or variables whose values are modified asynchronously. This can @@ -39,7 +36,7 @@ unnecessary complexity to the compiler (and increased compilation time): numerical algorithms, where FORTRAN could achieve a better performance (and in fact even with this specifier FORTRAN has a better performance in this field). Ignoring it doesn't make the - code non-standard and in almost all applications the performance + compiler non-standard and in almost all applications the performance will be the same. - Function type names