| Red Hat Enterprise Linux 4: Using the GNU Compiler Collection (GCC) | ||
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ISO C99 and ISO C++ allow declarations and code to be freely mixed within compound statements. As an extension, GCC also allows this in C89 mode. For example, you could do:
int i; /* … */ i++; int j = i + 2; |
Each identifier is visible from where it is declared until the end of the enclosing block.