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 - gen1.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30851-7844d7b3a5) Lines: 1881 2002 94.0 % Date: 2026-05-02 09:26:58 Functions: 104 104 100.0 % Legend: Lines: hit not hit

Function Name	Hit count
Leading_is_neg	57629514
Q_to_Fp	226838
Qdivii	143128261
Qdivis	1762588
Qdiviu	151464049
Zp_nosquare_m1	42
_serprec	8187556
addQp	4763000
addRc	310775149
addRq	1302
addTp	7
add_intmod_same	3411671
add_rfrac	3017298
add_rfrac_scal	8823993
add_scal	29439045
add_ser_scal	417285
addqf	77
addsub_frac	40954851
addsub_frac_i	14260371
addsub_polmod	7210
addsub_polmod_scal	13598737
addsub_pp	19974751
conj_i	31556139
conjvec	84
divRc	2918670
divRq	301
divTp	3674
div_T_scal	7295909
div_intmod_same	341573
div_polmod_same	38150
div_rfrac	1187510
div_rfrac_pol	260657
div_rfrac_scal	32435
div_scal_T	15557271
div_scal_pol	14531955
div_scal_rfrac	1052294
div_scal_ser	19096
div_ser	875766
div_ser_scal	1543591
divcR	23431154
divfq	42
divpT	1204910
divpp	13213414
divqf	63
divrunextu	213651897
fix_rfrac	207018
gadd	6257663368
gaddsg	270816213
gconj	390611
gdiv	455358961
gdivgs	13378317
gdivgu	61805395
gdivgunextu	1583803
ginv	38492159
gmul	8961756964
gmul2n	150453071
gmulsg	244312239
gmulug	283938451
gred_rfrac2	39476029
gred_rfrac_simple	57633715
gsqr	1344008450
gsub	2904973360
gsubsg	3270047
inv_polmod	192396
is_ext_qfr	98
kro_quad	35
mkpadic_mod	24594925
mulRc	355234300
mulRq	2387
mulTp	4985916
mul_gen_rfrac	161376
mul_intmod_same	2987876
mul_polmod	2674945
mul_polmod_same	8647444
mul_polmod_scal	3284721
mul_rfrac	7910292
mul_rfrac_scal	10435532
mul_scal	198406516
mul_self_scal	7664203
mul_ser_scal	323974
mulcIR	11905872
mulcc	281711832
mulcxI	15655065
mulcxmI	2985961
mulcxpowIs	5564647
mulpp	17505480
mulqf	28
mulqq	1127
mulrfrac	38070544
pol2ser	6378562
quad_polmod_conj	18669
quad_polmod_mul	5861861
quad_polmod_norm	18669
rfrac_denom_mul_scal	9852099
ser_add	4094177
ser_normalize	7658
setfrac	15159000
sqr_polmod	426119
sqr_ser_part	113907
sqrq	70
sub_intmod_same	1017835
transtype	154223893
utoi_sign	65171414
warn_coercion	126

Generated by: LCOV version 1.16