HP-UX Cadvise Diagnostics Reference Guide (5900-1865, August 2012)
Table Of Contents
- HP Code Advisor Diagnostics Reference Guide
- Contents
- About This Document
- 1 Diagnostics Categorization
- 2 Diagnostics Details
- 2009 nested comment is not allowed
- 2028 expression must have a constant value
- 2042 operand types are incompatible (%t1 and %t2)
- 2047 incompatible redefinition of macro %nod
- 2054 Too few arguments in macro invocation
- 2063 shift count is too large
- 2064 declaration does not declare anything
- 2068 integer conversion resulted in a change of sign
- 2069 integer conversion resulted in truncation
- 2077 this declaration has no storage class or type specifier
- 2082 storage class is not first
- 2102 forward declaration of enum type is nonstandard
- 2108 signed bit field of length 1
- 2111 statement is unreachable
- 2117 non-void %n should return a value
- 2120 return value type does not match the function type
- 2128 loop is not reachable from preceding code
- 2144 a value of type %t1 cannot be used to initialize an entity of type %t2
- 2147 declaration is incompatible with %nfd
- 2152 conversion of nonzero integer to pointer
- 2167 argument of type %t1 is incompatible with parameter of type %t2
- 2170 pointer points outside of underlying object
- 2172 external/internal linkage conflict with previous declaration %nod
- 2174 expression has no effect
- 2175 subscript out of range
- 2177 %n was declared but never referenced
- 2180 argument is incompatible with formal parameter
- 2181 argument is incompatible with corresponding format string conversion
- 2186 pointless comparison of unsigned integer with zero
- 2187 use of "=" where "==" may have been intended
- 2188 enumerated type mixed with another type
- 2191 type qualifier is meaningless on cast type
- 2192 unrecognized character escape sequence
- 2193 zero used for undefined preprocessing identifier
- 2223 function %sq declared implicitly
- 2224 the format string requires additional arguments
- 2225 the format string ends before this argument
- 2226 invalid format string conversion
- 2228 trailing comma is nonstandard
- 2231 declaration is not visible outside of function
- 2236 controlling expression is constant
- 2237 selector expression is constant
- 2245 a nonstatic member reference must be relative to a specific object
- 2248 pointer to reference is not allowed
- 2249 reference to reference is not allowed
- 2250 reference to void is not allowed
- 2251 array of reference is not allowed
- 2252 reference %n requires an initializer
- 2260 explicit type is missing ("int" assumed)
- 2263 duplicate base class name
- 2265 %nd is inaccessible
- 2267 old-style parameter list (anachronism)
- 2269 conversion to inaccessible base class %t is not allowed
- 2276 name followed by :: must be a class or namespace name
- 2278 a constructor or destructor may not return a value
- 2306 default argument not at end of parameter list
- 2314 only nonstatic member functions may be virtual
- 2315 the object has cv-qualifiers that are not compatible with the member function
- 2319 pure specifier ("= 0") allowed only on virtual functions
- 2320 badly-formed pure specifier (only "= 0" is allowed)
- 2321 data member initializer is not allowed
- 2322 object of abstract class type %t is not allowed
- 2323 function returning abstract class %t is not allowed
- 2325 inline specifier allowed on function declarations only
- 2329 local class member %n requires a definition
- 2336 unknown external linkage specification
- 2340 value copied to temporary, reference to temporary used
- 2363 invalid anonymous union -- nonpublic member is not allowed
- 2364 invalid anonymous union -- member function is not allowed
- 2365 anonymous union at global or namespace scope must be declared static
- 2375 declaration requires a typedef name
- 2381 extra ";" ignored
- 2487 inline %n cannot be explicitly instantiated
- 2513 a value of type %t1 cannot be assigned to an entity of type %t2
- 2546 transfer of control bypasses initialization of: "variable"
- 2549 "variable" is used before its value is set
- 2550 %n was set but never used
- 2656 transfer of control into a try block
- 2767 conversion from pointer to smaller integer
- 2815 type qualifier on return type is meaningless
- 2826 %n was never referenced
- 2830 %n has no corresponding operator delete%s (to be called if an exception is thrown during initialization of an allocated object)
- 2836 returning reference to local variable
- 2837 omission of explicit type is nonstandard ("int" assumed)
- 2940 missing return statement at end of non-void function "function"
- 2951 return type of function "main" must be int
- 2991 extra braces are nonstandard
- 3000 a storage class may not be specified here
- 3051 standard requires that %n be given a type by a subsequent declaration (\"int\" assumed)
- 3055 types cannot be declared in anonymous unions
- 3056 returning pointer to local variable
- 3105 #warning directive: %s
- 3138 format argument does not have string type
- 3145 %t1 would have been promoted to %t2 when passed through the ellipsis parameter; use the latter type instead
- 3197 the prototype declaration of %nfd is ignored after this unprototyped redeclaration
- 3290 Passing a non-POD object to a function with variable arguments has undefined behavior. Object will be copied onto the stack instead of using a constructor.
- 3348 declaration hides %nd
- 3353 %n has no corresponding member operator delete%s (to be called if an exception is thrown during initialization of an allocated object)
- 3750 "\" followed by white space is not a line splice
- 4212 mismatch between character pointer types %t1 and %t2
- 4225 suggest parentheses around comparison in operand of %sq
- 4227 padding struct with %s1 bytes to align member %sq2
- 4228 64 bit migration: conversion from %t1 to a more strictly aligned type %t2 may cause misaligned access
- 4229 64 bit migration: conversion from %t1 to %t2 may truncate value
- 4230 64 bit migration: conversion from %t1 to %t2 may cause target of pointers to have a different size.
- 4231 64 bit migration: conversion between types of different sizes has occurred (from %t1 to %t2 )
- 4232 conversion from %t1 to a more strictly aligned type %t2 may cause misaligned access
- 4235 conversion from %t1 to %t2 may lose significant bits
- 4237 type cast from %t1 to %t2 may cause sign extension to a larger size integer.
- 4239 case type mismatch with switch expression type
- 4241 redeclaration, function %nod was previously called without a prototype
- 4242 No prototype or definition in scope for call to %sq
- 4243 function declared with empty parentheses, consider replacing with a prototype
- 4244 extern storage class used with a function definition
- 4245 storage class used with a data definition
- 4247 function called with different argument counts (%s vs. %s2)
- 4248 comparison of unsigned integer with a signed integer
- 4249 64 bit migration: value could be truncated before cast to bigger sized type.
- 4251 the assignment has an excessive size for a bit field
- 4253 unsigned value cannot be less than zero
- 4255 padding size of struct %sq1 with %s2 bytes to alignment boundary
- 4259 suggest parentheses around the operands of %sq
- 4264 padding size of struct anonymous with %s bytes to alignment boundary
- 4272 conversion from %t1 to %t2 may lose sign
- 4273 floating-point equality and inequality comparisons may be inappropriate due to round off common in floating-point computation
- 4274 comparison of pointer with integer zero
- 4275 constant out of range (%s) for the operator
- 4276 relational operator %sq always evaluates to 'false'
- 4277 logical AND with a constant, do you mean to use '&'?
- 4278 the sub expression in logical expression is a constant
- 4279 the expression depends on order of evaluation
- 4281 assignment in control condition
- 4286 return non-const handle to non-public data member may undermine encapsulation
- 4289 endian porting: the definition of the union may be endian dependent
- 4290 endian porting: the initialization of char array may be endian dependent
- 4292 endian porting: the dereference of cast pointer may be endian dependent
- 4295 abstract function type declared with empty parentheses, consider replacing with parameter list or void.
- 4298 64 bit migration: addition result could be truncated before cast to bigger sized type
- 4299 64 bit migration: multiply result could be truncated before cast to bigger sized type
- 4300 Overflow while computing constant in left shift operation
- 4301 expression has no effect
- 4314 if statement without body, did you insert an extra ';'?
- 4315 %s loop without body, did you insert an extra ';'?
- 4354 One of the operands of the %sq operation is a string literal, strcmp() is recommended for such comparison
- 4355 the initializer for %n is greater than %s
- 4356 operand of sizeof is a constant rvalue, this might not be what you intended
- 4357 octal escape sequence "%s" is followed by decimal character '%s2'
- 4360 size of types of consecutive bitfields are different, bitfield packing behavior may be different across compiler
- 4361 64 bit migration: size of types of consecutive bitfields are different, bitfield packing behavior may be different across compilers
- 4363 possible mismatch in parameters passed to %n, previously seen %p
- 4364 endian porting: type cast is endian dependent
- 4365 endian porting: the definition of the union may be endian dependent
- 4370 Control flows into the switch case from the previous case value
- 4372 Potential overflow in arithmetic expression involving time_t/clock_t values
- 4373 non arithmetic integer conversion resulted in a change of sign
- 4377 endian porting: sending data may be endian dependent if not preceded by conversion
- 4378 endian porting: accessing data without conversion may be endian dependent
- 4379
: : - 20035 variable %s is used before its value is set
- 20036 variable %s (field %s) is used before its value is set
- 20037 variable %s may be used before its value is set
- 20048 %s "%s" has incompatible type with previous declaration at line %s in file "%s"
- 20072 variable %s is partially uninitialized when used
- 20073 variable %s may be partially uninitialized when used
- 20074 variable %s (field "%s") may be used before its value is set
- 20200 Potential null pointer dereference %s%s is detected %s
- 20201 Memory leak is detected
- 20202 Allocated memory may potentially be leaked %s
- 20203 Potential out of scope use of local %s %s
- 20206 Out of bound access (%s)
- 20208 Forming out of bound address(%s)
- 20210 Mismatch in allocation and deallocation
- 20213 Potential write to read only memory %s%s is detected
- 20229 variable "%s" is uninitialized if the loop %s is not executed
- 20231 variable "%s" (field "%s") may be used before its value is set if the loop %s is not executed
ANSI/ISO C++ 18.1(5)
4272 conversion from %t1 to %t2 may lose sign
Cause:
The Compiler has detected conversion from a signed data type to an unsigned data type. This
may lead to loss of sign.
Example:
typedef unsigned int uint32_t;
void foo(int j) {
uint32_t k;
k = j;
}
Action:
If this is intended then add a cast.
Reference:
4273 floating-point equality and inequality comparisons may be
inappropriate due to round off common in floating-point computation
Cause:
Since floating point numbers are usually subject to rounding-off errors, comparison between
non-constant floating point values may not always be accurate.
Example:
bool check(float v1, float v2) {
return ( v1 == v2 );
}
Action:
Change your program logic to not depend on such comparisons.
Reference:
4274 comparison of pointer with integer zero
Cause:
A pointer is being compared with an integer zero. Equality comparison with integer zero is allowed
for checking if the pointer is null but other comparisons like >, <, ≥ and ≤are not valid.
Example:
int main() {
char* ptr = 0;
if(ptr >= 0)
return 1;
}
Action:
Rewrite the expression to use == or !=.
Reference:
4275 constant out of range (%s) for the operator
Cause:
For a given relational operation the constant is out of range specified by the other non-constant
operand.
60 Diagnostics Details