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meson/test cases/common/138 compute int/meson.build

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compiler: Add compute_int functionality. Fixes #435
8 years ago
project('compute int', 'c', 'cpp')
inc = include_directories('.')
# Test with C
cc = meson.get_compiler('c')
compiler: Fix compute_int and sizeof for cross compilation. sizeof now uses compute_int which again binary searches for correct value.
8 years ago
intsize = cc.compute_int('sizeof(int)', low : 1, high : 16, guess : 4)
compiler: Add compute_int functionality. Fixes #435
8 years ago
foobar = cc.compute_int('FOOBAR_IN_FOOBAR_H', prefix : '#include "foobar.h"', include_directories : inc)
Remove arbitrary [-1024,1024] limit in cross_compute_int() Copy the algorithm used by autoconf. It computes the upper and lower limits by starting at [-1,1] and multiply by 2 at each iteration. This is even faster for small numbers (the common case), for example it finds value 0 in just 2 compilations where old algorithm would check for 1024, 512, ..., 0.
7 years ago
maxint = cc.compute_int('INT_MAX', prefix: '#include <limits.h>')
minint = cc.compute_int('INT_MIN', prefix: '#include <limits.h>')
compiler: Add compute_int functionality. Fixes #435
8 years ago
cd = configuration_data()
cd.set('INTSIZE', intsize)
cd.set('FOOBAR', foobar)
cd.set('CONFIG', 'config.h')
Remove arbitrary [-1024,1024] limit in cross_compute_int() Copy the algorithm used by autoconf. It computes the upper and lower limits by starting at [-1,1] and multiply by 2 at each iteration. This is even faster for small numbers (the common case), for example it finds value 0 in just 2 compilations where old algorithm would check for 1024, 512, ..., 0.
7 years ago
cd.set('MAXINT', maxint)
cd.set('MININT', minint)
compiler: Add compute_int functionality. Fixes #435
8 years ago
configure_file(input : 'config.h.in', output : 'config.h', configuration : cd)
s = configure_file(input : 'prog.c.in', output : 'prog.c', configuration : cd)
e = executable('prog', s)
test('compute int test', e)
# Test with C++
cpp = meson.get_compiler('cpp')
intsize = cpp.compute_int('sizeof(int)')
foobar = cpp.compute_int('FOOBAR_IN_FOOBAR_H', prefix : '#include "foobar.h"', include_directories : inc)
Remove arbitrary [-1024,1024] limit in cross_compute_int() Copy the algorithm used by autoconf. It computes the upper and lower limits by starting at [-1,1] and multiply by 2 at each iteration. This is even faster for small numbers (the common case), for example it finds value 0 in just 2 compilations where old algorithm would check for 1024, 512, ..., 0.
7 years ago
maxint = cpp.compute_int('INT_MAX', prefix: '#include <limits.h>')
minint = cpp.compute_int('INT_MIN', prefix: '#include <limits.h>')
compiler: Add compute_int functionality. Fixes #435
8 years ago
cdpp = configuration_data()
cdpp.set('INTSIZE', intsize)
cdpp.set('FOOBAR', foobar)
cdpp.set('CONFIG', 'config.hpp')
Remove arbitrary [-1024,1024] limit in cross_compute_int() Copy the algorithm used by autoconf. It computes the upper and lower limits by starting at [-1,1] and multiply by 2 at each iteration. This is even faster for small numbers (the common case), for example it finds value 0 in just 2 compilations where old algorithm would check for 1024, 512, ..., 0.
7 years ago
cdpp.set('MAXINT', maxint)
cdpp.set('MININT', minint)
compiler: Add compute_int functionality. Fixes #435
8 years ago
configure_file(input : 'config.h.in', output : 'config.hpp', configuration : cdpp)
spp = configure_file(input : 'prog.c.in', output : 'prog.cc', configuration : cdpp)
epp = executable('progpp', spp)
test('compute int test c++', epp)