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

Generated by: LCOV version 1.16