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Improve some display error handling (#7212 prep)

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Wilson Snyder
2026-03-12 07:49:21 -04:00
parent a787d631ce
commit 08c6d5bde5
11 changed files with 57 additions and 41 deletions
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src/V3Number.cpp
+14 -15
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@@ -613,23 +613,23 @@ string V3Number::ascii(bool prefixed, bool cleanVerilog) const VL_MT_STABLE {
bool V3Number::displayedFmtLegal(char format, bool isScan) {
// Is this a valid format letter?
switch (std::tolower(format)) {
case 'b': return true;
case 'c': return true;
case 'd': return true; // Unsigned decimal
case 'e': return true;
case 'f': return true;
case 'g': return true;
case 'h': return true;
case 'o': return true;
case 'b': return true; // Binary
case 'c': return true; // Character
case 'd': return true; // Decimal; internal: Unsigned decimal
case 'e': return true; // Floating
case 'f': return true; // Floating
case 'g': return true; // Floating
case 'h': return true; // Hex
case 'o': return true; // Octal
case 'p': return true; // Pattern
case 's': return true;
case 't': return true;
case 's': return true; // String; internal: number-stored string
case 't': return true; // Time
case 'u': return true; // Packed 2-state
case 'v': return true; // Strength
case 'x': return true;
case 'x': return true; // Hex
case 'z': return true; // Packed 4-state
case '@': return true; // Packed string
case '~': return true; // Signed decimal
case '@': return true; // Internal: Packed string
case '~': return true; // Internal: Signed decimal
case '*': return isScan; // $scan ignore argument
default: return false;
}
@@ -748,8 +748,7 @@ string V3Number::displayed(FileLine* fl, const string& vformat) const VL_MT_STAB
return str;
} // case b/d/x/o
case 'c': {
if (width() > 8)
fl->v3warn(WIDTHTRUNC, "$display-like format of %c format of > 8 bit value");
// V3Width has warning if > 8 bits
const unsigned int v = bitsValue(0, 8);
str.push_back(static_cast<char>(v));
return str;