This error occurs at compile time:
error: ‘NULL’ was not declared in this scope
Solutions:
Add the following code at the beginning of the file: #include < stddef.h>
or
#include < stdlib.h>
or
#include < cstdlib>
error: ‘NULL’ was not declared in this scope
Solutions:
Add the following code at the beginning of the file: #include < stddef.h>
or
#include < stdlib.h>
or
#include < cstdlib>
Read More:
- Linux QT download / usr / include / C + + / 7/ cstdlib:75 : 15: fatal error: stdlib. H: no such file or directory error
- c++ error: ‘malloc’ was not declared in this scope
- error: ‘exit’ was not declared in this scope
- g++ c++ error: ‘malloc’ was not declared in this scope
- error: ‘atoi’ was not declared in this scope
- error: `cout’ was not declared in this scope
- “Error: ` cout ‘was not declared in this scope”
- Code::Blocks 12.11 error: ‘nullptr’ was not declared in this scope&GNU GCC -std=gnu++0x
- Arduino reports an error when writing a custom library file to solve the problem of not name of type, not declared in this scope
- Analysis of compilation errors of “error conflicting types for function”
- Analysis of the causes of errors in G + + compilation “was not declared in this scope”“
- error: ‘vector’ does not name a type
- g++ error: ‘printf’ was not declared in this scope
- Arduino ide 1.6.9 problems encountered error:’TKD2′ was not declared in this scope
- Failed to execute goal org.apache.tomcat.maven:tomcat7-maven-plugin:2.2:run (default-cli) on project
- error: ‘memcpy’ was not declared in this scope
- pthread_ Introduction and application of join function
- [Solved] Ktolin Android Project Compile Error: w: Runtime JAR files in the classpath should have the same version. These file
- error C2057: expected constant expression (Can the size of an array in C language be defined when the program is running?)
- 【Hackerrank】Reverse a doubly linked list