33 lines
935 B
C++
33 lines
935 B
C++
#include <cstdio>
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#include <cstdlib>
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// This file is instantiated by CMake.
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// DEFINITIONS below is replaced with a set of lines like so:
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// #ifdef __SSE2__
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// "SSE2",
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// #endif
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//
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// This allows for introspection of compiler definitions.
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// The output of the program is a single line of semi colon separated feature
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// names.
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// MSVC is using a different set of preprocessor definitions for
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// SSE and SSE2, see _M_IX86_FP in
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// https://docs.microsoft.com/en-us/cpp/preprocessor/predefined-macros
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int main(int, char **) {
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const char *strings[] = {
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@DEFINITIONS@
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// If DEFINITIONS turns out to be empty, we don't want to list
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// an empty array. So, we add an end of list marker.
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"<end_of_feature_list>"
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};
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const size_t size = sizeof(strings) / sizeof(strings[0]);
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for (size_t i = 0; i < size; ++i) {
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if (i)
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putchar(';');
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fputs(strings[i], stdout);
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}
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return EXIT_SUCCESS;
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}
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