Bug 22699 – importC: assignment cannot be used as a condition

C has the error-prone feature of assignment being an expression. For example: // assignexpr.c int x; int foo(int y){ if (x = y) // Error: assignment cannot be used as a condition, perhaps `==` was meant? return 3; return 0; } The CoreFoundation framework on macOS has a header with an inline function that uses this feature: static inline __attribute__((always_inline)) void CFStringInitInlineBuffer(CFStringRef str, CFStringInlineBuffer *buf, CFRange range) { buf->theString = str; buf->rangeToBuffer = range; buf->directCStringBuffer = (buf->directUniCharBuffer = CFStringGetCharactersPtr(str)) ? ((void*)0) : CFStringGetCStringPtr(str, kCFStringEncodingASCII); buf->bufferedRangeStart = buf->bufferedRangeEnd = 0; }

@WalterBright created dlang/dmd pull request #13580 "fix Issue 22699 - importC: assignment cannot be used as a condition" fixing this issue: - fix Issue 22699 - importC: assignment cannot be used as a condition https://github.com/dlang/dmd/pull/13580

dlang/dmd pull request #13580 "fix Issue 22699 - importC: assignment cannot be used as a condition" was merged into master: - a53ebbb9a1c82a8448684cd43a43beb980eceaa4 by Walter Bright: fix Issue 22699 - importC: assignment cannot be used as a condition https://github.com/dlang/dmd/pull/13580