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) Coverage Total Hit Test: PARI/GP v2.18.1 lcov report (development 31042-0fbe168e69) Lines: 92.2 % 1111 1024 Test Date: 2026-07-23 17:04:59 Functions: 94.1 % 119 112 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
group_export_MAGMA	14
all_cyclic_subg	21
group_export_GAP	21
groupelts_cyclic_primepow	21
groupelts_residuum	21
groupelts_solvablesubgroups	21
groupelts_subgroups_raw	21
groupelts_to_regular	21
perm_mul_inplace2	21
set_derived	21
set_idx	21
subg_to_elts	21
triv_subg	21
vecvecsmall_sort	21
group_export	35
perm_pow	77
vecvecsmall_sort_inplace	133
permcycles	259
permsign	273
group_subgroup_isnormal	336
perm_order	427
permorder	434
perm_to_GAP	441
abelian_group	462
vecvecsmall_sort_uniq	462
subgroups_tableset	497
subg_extend	546
group_abelianSNF	595
group_abelianHNF	644
cyclic_subg	651
groupelts_pow	651
groupelts_center	700
dicyclicgroup	1085
groupelt_subg_normalize	1218
set_groupelts	1239
vecvecsmall_indexsort	1281
quotient_groupelts	1659
perm_to_Z	1680
perm_to_Z_inplace	1701
permtonum	1708
subg_get_gen	1764
vec_isconst	1855
_domul	2002
tableset_find_index	2002
isperm	2667
galois_elts_sorted	3899
groupelts_cyclic_subgroups	4144
groupelts_to_group	4151
conjclasses_repr	4284
groupelts_conjclasses	4284
group_to_cc	4305
group_subgroup_is_faithful	4816
group_subgroup_kernel_set	4816
vecperm_orbits	4893
Z_to_perm	5915
numtoperm	5915
cyc_pow	7512
group_isabelian	9723
group_isA4S4	10094
quotient_group	10262
group_quotient	10269
vecsmall_is1to1	11530
groupelts_quotient	11928
vecsmall_counting_indexsort	12922
subg_get_set	12978
perm_generate	13104
group_subgroups	13314
perm_cycles	14121
groupelts_conj_set	14448
groupelts_subgroup_isnormal	15435
vecsmall_counting_uniq	16129
vecsmall_uniq	16488
sgcmp	17353
vecsmall_isconst	17944
perm_powu	19194
vecsmall_duplicate	21079
group_domain	27391
groupelts_set	28182
cyclicgroup	29162
quo_get_coset	30408
quotient_perm	30408
vecsmall_uniq_sorted	31390
liftsubgroup	49350
quotient_subgroup_lift	51009
trivialsubgroups	52570
trivialgroup	52612
vecsmall_is1to1spec	55450
liftlistsubgroups	65275
perm_bracket	75600
group_set	90727
vec_insert	98084
group_elts	141813
quo_get_gen	142688
group_perm_normalize	184758
group_rightcoset	184758
perm_relorder	220332
group_leftcoset	307433
vecvecsmall_sort_shallow	370881
perm_orderu	441830
vecperm_orbits_i	461271
perm_commute	572901
group_order	718571
grp_get_gen	951636
perm_sign	968308
grp_get_ord	1612492
vecsmall_counting_sort	1970981
vecsmall_indexsort	2488260
vecsmall_indexsortspec	8239255
vecvecsmall_search	22934359
vecsmall_sort_max	51980087
vecsmall_sort	56204575
vecsmall_sortspec	379775539

Generated by: LCOV version 2.0-1