Code coverage tests

This page documents the degree to which the PARI/GP source code is tested by our public test suite, distributed with the source distribution in directory src/test/. This is measured by the gcov utility; we then process gcov output using the lcov frond-end.

We test a few variants depending on Configure flags on the pari.math.u-bordeaux.fr machine (x86_64 architecture), and agregate them in the final report:

• with GMP kernel
• with GMP kernel using --mt=pthread
• with native kernel, including micro-assembler code
• with native kernel, without micro-assembler
• with native kernel, without micro-assembler, disabling GCC extensions (DISABLE_INLINE)
• with GMP kernel, emulating an x86_32 architecture at Configure time via setarch

The target is to exceed 90% coverage for all mathematical modules (given that branches depending on DEBUGLEVEL or DEBUGMEM are not covered). This script is run to produce the results below.

LCOV - code coverage report

Current view: top level - basemath - perm.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30640-c2c58e18c5) Lines: 1019 1106 92.1 % Date: 2026-01-27 08:51:18 Functions: 112 119 94.1 % Legend: Lines: hit not hit

Function Name	Hit count
cyc_pow_perm	0
groupelts_abelian_group	0
groupelts_exponent	0
vec_is1to1	0
vecperm_extendschreier	0
vecsmall_duplicate_sorted	0
vecvecsmall_max	0
all_cyclic_subg	14
group_export_GAP	14
group_export_MAGMA	14
groupelts_cyclic_primepow	14
groupelts_residuum	14
groupelts_solvablesubgroups	14
groupelts_subgroups_raw	14
groupelts_to_regular	14
set_derived	14
set_idx	14
subg_to_elts	14
triv_subg	14
vecvecsmall_sort	14
perm_mul_inplace2	21
perm_to_GAP	21
group_export	28
perm_pow	77
vecvecsmall_sort_inplace	126
permcycles	259
permsign	273
group_abelianSNF	294
group_subgroup_isnormal	336
group_abelianHNF	343
subg_extend	364
abelian_group	390
perm_order	427
cyclic_subg	434
groupelts_pow	434
permorder	434
vecvecsmall_sort_uniq	462
subgroups_tableset	497
groupelts_center	700
groupelt_subg_normalize	812
set_groupelts	826
vecvecsmall_indexsort	861
dicyclicgroup	1085
subg_get_gen	1176
quotient_groupelts	1500
perm_to_Z	1680
perm_to_Z_inplace	1701
permtonum	1708
vec_isconst	1848
_domul	2002
tableset_find_index	2002
isperm	2667
groupelts_cyclic_subgroups	3553
groupelts_to_group	3560
galois_elts_sorted	3885
conjclasses_repr	4270
groupelts_conjclasses	4270
group_to_cc	4291
vecperm_orbits	4643
group_subgroup_is_faithful	4816
group_subgroup_kernel_set	4816
Z_to_perm	5915
numtoperm	5915
cyc_pow	6597
vecsmall_uniq_sorted	8282
subg_get_set	8694
group_isabelian	8862
group_isA4S4	9990
quotient_group	10158
group_quotient	10165
vecsmall_is1to1	10434
groupelts_quotient	11665
perm_cycles	11940
vecsmall_counting_indexsort	12434
perm_generate	13052
group_subgroups	13158
groupelts_conj_set	14448
groupelts_subgroup_isnormal	14597
vecsmall_counting_uniq	16069
vecsmall_isconst	16185
vecsmall_uniq	16428
sgcmp	17353
perm_powu	18281
vecsmall_duplicate	20669
group_domain	26636
cyclicgroup	27844
groupelts_set	28026
quo_get_coset	29974
quotient_perm	29974
liftsubgroup	49194
perm_bracket	50400
quotient_subgroup_lift	50694
vecsmall_is1to1spec	51356
trivialsubgroups	52362
trivialgroup	52390
liftlistsubgroups	65223
group_set	90675
vec_insert	98084
group_elts	134510
quo_get_gen	141519
group_perm_normalize	181993
group_rightcoset	181993
perm_relorder	220088
group_leftcoset	304032
vecvecsmall_sort_shallow	365332
perm_orderu	436226
perm_commute	572537
group_order	703919
perm_sign	870885
grp_get_gen	935039
vecperm_orbits_i	1324104
grp_get_ord	1582968
vecsmall_counting_sort	1778547
vecsmall_indexsort	2458365
vecsmall_indexsortspec	8105050
vecvecsmall_search	22934359
vecsmall_sort_max	25426344
vecsmall_sort	29211274
vecsmall_sortspec	149801303

Generated by: LCOV version 1.16