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14.02.2013 · Cmake commands do not see these >> quotes. Therefore, STREQUAL can never know the difference between "baz" >> and >> baz. >> >> So, STREQUAL treats a parameter as a variable name if it is defined, but >> as >> a string value if it is not. (I verified this in cmIfCommand.cxx) >> >> Is this quote behavior well

+CMake" matchResultVar "People should use CMake") 105 if(NOT "${matchResultVar}" STREQUAL "People should use CMake") 106 message(SEND_ERROR "string(REGEX ...

# Since ARCH is a cached variable, it will not be set on first cmake invocation. if (NOT ARCH OR ARCH STREQUAL " ...

You ran into a rather annoying "it's not a bug, it's a feature" behavior of CMake. As explained in the documentation of the if command:. The if command was written very early in CMake's history, predating the ${} variable evaluation syntax, and for convenience evaluates variables named by its arguments as shown in the above signatures.

Then any binary tests such as EQUAL , LESS , LESS_EQUAL, ``GREATER , GREATER_EQUAL , STREQUAL , STRLESS , STRLESS_EQUAL , STRGREATER , STRGREATER_EQUAL ...

According to the CMake documentation, the STREQUAL comparison is allowed to take either a VARIABLE or a STRING as either parameter.

Unary tests such as EXISTS, COMMAND, and DEFINED. Binary tests such as EQUAL, LESS, LESS_EQUAL, GREATER, GREATER_EQUAL, STREQUAL, STRLESS, STRLESS_EQUAL, ...

CMakeLists.txt ... https://cmake.org/cmake/help/v3.1/policy/CMP0054.html ... message(FATAL_ERROR "SPIR-V compression codec has been removed from SPIR-V ...

CMakeの値はすべて文字列型ですが、この条件式の文脈では以下の値がBoolean値として認識されます。また、これらの値は大文字・小文字の区別がされません。 真と解釈される値. 0でない数値; ON; YES; TRUE; Y

CMake compare to empty string with STREQUAL failed (1). You ran into a rather annoying "it's not a bug, it's a feature" behavior of CMake.

set(A "") set(B "A") # save name of the variable if(${B} STREQUAL "") message("Value of ${B} is an empty string") endif(). If a CMake policy CMP0054 is set ...

where compiler_ids is a comma-separated list. 1 if the CMake's compiler id of the Objective-C++ compiler matches any one of the entries in compiler_ids, otherwise 0.See also the CMAKE_<LANG>_COMPILER_ID variable.

if (test STREQUAL "") ... written before we even had ${test} variable expansion in the CMake language. ... Something like QString::null() vs.

Control Flow

The if command was written very early in CMake's history, predating the ${} variable evaluation syntax, ... , STREQUAL, STRLESS_EQUAL, and STRGREATER_EQUAL are independently tested to see if they are defined variables, if so their defined values are …

Therefore, STREQUAL can never know the difference between "baz" and baz. So, STREQUAL treats a parameter as a variable name if it is ... For others like me, I'd like this behavior to be emphasized in the cmake docs for STREQUAL. Happy Valentine's. Shaun. Ansis Māliņš 2013-02-14 21:51:19 UTC. ... (COMPARE EQUAL "${build_system}" windows _cmp ...

Sep 04, 2014 · On 04-Sep-14 09:58, Clark Wang wrote: > On Thu, Sep 4, 2014 at 1:44 PM, Clark Wang <dearvoid at gmail.com > <mailto:dearvoid at gmail.com>> wrote: > > On Thu, Sep 4, 2014 at 1:36 PM, Chuck Atkins > <chuck.atkins at kitware.com <mailto:chuck.atkins at kitware.com>> wrote: > > Hi Clark > > The expression inside the if statement has it's variables > dereferenced before evaluating and the non ...

20.02.2020 · 可能是它的错误(因为它使用Xcode进行打印，而不是使用make进行打印)？ 还是有一些特殊的变量？ cmake：2.8.12、2.8.11.2

Check operating system. IF(CMAKE_SYSTEM_NAME STREQUAL Linux) ... Show verbose output of a test. ctest -V -R "itkTransformPoint*"| ...

Binary tests such as EQUAL, LESS, LESS_EQUAL, GREATER, GREATER_EQUAL, STREQUAL, STRLESS, STRLESS_EQUAL, STRGREATER, STRGREATER_EQUAL, VERSION_EQUAL, VERSION_LESS, VERSION_LESS_EQUAL, VERSION_GREATER, VERSION_GREATER_EQUAL, and MATCHES. Unary logical operator NOT. Binary logical operators AND and OR, from left to right, without any short-circuit.

07.02.2018 · 这是CMake的一个特性。正如if命令的文档中所解释的那样：. The if command was written very early in CMake's history, predating the ${} variable evaluation syntax, and for convenience evaluates variables named by its arguments as shown in the above signatures.

$<STREQUAL:a,b> 1 if a is STREQUAL b, else 0 $<EQUAL:a,b> 1 if a is EQUAL b in a numeric comparison, else 0 ... 1 if v1 is a version less than or equal to v2, else 0. $<VERSION_GREATER_EQUAL:v1,v2> 1 if v1 is a version greater than or equal to v2, ... expands to OLD_COMPILER if the CMAKE_CXX_COMPILER_VERSION is less than 4.2.0. Available ...

Feb 14, 2013 · Cmake commands do not see these >> quotes. Therefore, STREQUAL can never know the difference between "baz" >> and >> baz. >> >> So, STREQUAL treats a parameter as a variable name if it is defined, but >> as >> a string value if it is not. (I verified this in cmIfCommand.cxx) >> >> Is this quote behavior well

You ran into a rather annoying "it's not a bug, it's a feature" behavior of CMake. As explained in the documentation of the if command:. The if command was written very early in CMake's history, predating the ${} variable evaluation syntax, and for convenience evaluates variables named by its arguments as shown in the above signatures.

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