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PVS-Studio Documentation by OOO "Program Verification Systems" (www.viva64.com)

• Introduction
  • Overview
  • Registration
  • Release History
  • Limitation
• Error description
  • Common
    • V001 Cannot process the whole file
    • V002 Some diagnostic messages may contain incorrect line number
    • V003 Unrecognized error found...
  • Viva64
    • V101 Implicit assignment type conversion to memsize type.
    • V102 Usage of non memsize type for pointer arithmetic.
    • V103 Implicit type conversion from memsize to 32-bit type.
    • V104 Implicit type conversion to memsize type in an arithmetic expression.
    • V105 N operand of '?:' operation: implicit type conversion to memsize type.
    • V106 Implicit type conversion N argument of function 'foo' to memsize type.
    • V107 Implicit type conversion N argument of function 'foo' to 32-bit type.
    • V108 Incorrect index type: 'foo[not a memsize-type]'. Use memsize type instead.
    • V109 Implicit type conversion of return value to memsize type.
    • V110 Implicit type conversion of return value from memsize type to 32-bit type.
    • V111 Call function 'foo' with variable number of arguments. N argument has memsize type.
    • V112 Dangerous magic number N used.
    • V113 Implicit type conversion from memsize to double type or vice versa.
    • V114 Dangerous explicit type pointer conversion.
    • V115 Memsize type is used for throw.
    • V116 Memsize type is used for catch.
    • V117 Memsize type is used in the union.
    • V118 malloc() function accepts a dangerous expression in the capacity of an argument.
    • V119 More than one sizeof() operators are used in one expression.
    • V120 Member operator[] of object 'foo' declared with 32-bit type argument, but called with memsize type argument.
    • V121 Implicit conversion of the type of 'new' operator's argument to size_t type.
    • V122 Memsize type is used in the struct/class.
    • V201 Explicit type conversion. Type casting to memsize.
    • V202 Explicit type conversion. Type casting from memsize to 32-bit.
    • V203 Explicit type conversion from memsize to double type or vice versa.
    • V301 Unexpected function overloading behavior. See N argument of function 'foo' in derived class 'derived' and base class 'base'.
    • V302 Member operator[] of 'foo' class has a 32-bit type argument. Use memsize-type here.
    • V303 The function is deprecated in the Win64 system. It is safer to use the 'foo' function.
    • V320 A call of the 'foo' function will lead to a buffer overflow or underflow in a 64-bit system.
    • V401 The structure's size can be decreased via changing the fields' order. The size can be reduced from N to K bytes.
  • VivaMP
    • V1000 Did you forget to enable the /openmp compiler option?
    • V1001 Missing 'parallel' keyword.
    • V1002 Missing 'omp' keyword.
    • V1003 Missing 'for' keyword. Each thread will execute the entire loop.
    • V1004 Nested parallelization of a 'for' loop.
    • V1005 The 'ordered' directive is not present in an ordered loop.
    • V1006 Missing omp.h header file. Use '#include <omp.h>'.
    • V1101 Redefining number of threads in a parallel code.
    • V1102 Non-symmetrical use of set/unset functions for the following lock variable(s): foo.
    • V1103 Threads number dependent code. The 'omp_get_num_threads' function is used in an arithmetic expression.
    • V1104 Redefining nested parallelism in a parallel code.
    • V1201 Concurrent usage of a shared resource via an unprotected call of the 'foo' function.
    • V1202 The 'flush' directive should not be used for the 'foo' variable, because the variable has pointer type.
    • V1203 Using the 'threadprivate' directive is dangerous, because it affects the entire file. Use local variables or specify access type for each parallel block explicitly instead.
    • V1204 Data race risk. Unprotected static variable declaration in a parallel code.
    • V1205 Data race risk. Unprotected concurrent operation with the 'foo' variable.
    • V1206 Data race risk. The value of the 'foo' variable can be changed concurrently via the 'bar' function.
    • V1207 Data race risk. The 'foo' object can be changed concurrently by a non-const function.
    • V1208 The 'foo' variable of reference type cannot be private.
    • V1209 Warning: The 'foo' variable of pointer type should not be private.
    • V1210 The 'foo' variable is marked as lastprivate but is not changed in the last section.
    • V1211 The use of 'flush' directive has no sense for private 'foo' variable, and can reduce performance.
    • V1212 Data race risk. When accessing the array 'foo' in a parallel loop, different indexes are used for writing and reading.
    • V1301 The 'throw' keyword cannot be used outside of a try..catch block in a parallel section.
    • V1302 The 'new' operator cannot be used outside of a try..catch block in a parallel section.
    • V1303 The 'foo' function which throws an exception cannot be used in a parallel section outside of a try..catch block.
  • Customer's Specific Requests
    • V2001 Consider using the extended version of the 'foo' function here: bar.
    • V2002 Consider using the 'Ptr' version of the 'foo' function here: bar.
• Settings
  • Settings: General
  • Settings: Common Analyzer
  • Settings: Detectable Errors
  • Settings: Don't Check Files
  • Settings: Message Suppression
  • Settings: Registration
  • Settings: Viva64
  • Settings: VivaMP
• Using the program
  • Working Mode
  • Suppression of false alarms
• Additional information
  • Credits and acknowledgements
• Articles about PVS-Studio
  • Getting acquainted with PVS-Studio code analyzer
  • PVS-Studio Tutorial
  • PVS-Studio: using the function "Mark as False Alarm"
  • Using PVS-Studio from the command line
  • Comparing PVS-Studio with other code analyzers
  • PVS-Studio FAQ