Tells the compiler to generate code for a specific architecture.
Linux: | -m32 -m64 |
macOS: | -m64 |
Windows: | /Qm32 /Qm64 |
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The compiler's behavior depends on the host system. |
These options tell the compiler to generate code for a specific architecture.
Option |
Description |
|---|---|
-m32 or /Qm32 |
Tells the compiler to generate code for IA-32 architecture. |
-m64 or /Qm64 |
Tells the compiler to generate code for Intel® 64 architecture. |
The -m64 option is the same as macOS* option -arch x86_64. This option is not related to the Intel® C++ Compiler option arch.
On Linux* systems, these options are provided for compatibility with gcc.
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